This page gathers the 10,749 dictionary entries belonging to the domain “Medicine”, as labelled by Wiktionary. Each word leads to its full entry: definitions, etymology, pronunciation, examples. Page 85 of 108: from “reticuloid” to “RNA expression profile”.
- reticuloid noun A type of dermatitis resembling reticulosis but of different cause and character, usually actinic (caused by UV rays, usually from…
- reticuloperitonitis noun Inflammation of the reticulum and the peritoneum in ruminants, which is usually caused by, part of, and metonymically synonymous with…
- retina noun The thin layer of cells at the back of the eyeball that contains rods and cones sensitive to light, which trigger nerve impulses that pass…
- retinaculum noun A connecting band.
- retinal adj Of or pertaining to the retina.
- retinocyte noun a specialized cell in the retina of the eye, specifically referring to photoreceptor cells (rods and cones) that detect light and initiate…
- retinoic acid noun A derivative of vitamin A, used in the treatment of acne; it is essential for bone and tissue development.
- retinopapillitis noun Inflammation of the retina and the optic papilla, usually as a part of optic neuritis; depending on nosologic approach, viewed as…
- retinoschisis noun An eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer, sometimes…
- retriever noun A tool for retrieving materials from the body after an operation.
- retrocedent adj Of gout, an attack in which surface symptoms such as joint inflammation disappear suddenly, and are replaced by affections of the internal…
- retrocline verb Of teeth, to lean backward.
- retrograde adj Of amnesia: relating to the period leading up to the episode which caused it.
- retrograde perfusion noun An artificial method of providing blood supply to an organ by delivering oxygenated blood through the veins.
- retrojection noun The washing out of a cavity by the backward flow of an injected fluid.
- retropancreaticoduodenal adj A medical anatomical term describing a region or structure located behind the pancreas and duodenum. It is commonly used to specify the…
- retropose verb To insert into a chromosome following reverse transcription
- retroposition noun The insertion of a fragment of DNA into a chromosome following reverse transcription
- retropulsion noun A tendency to step or walk backwards involuntarily, especially as a symptom of parkinsonism.
- retrospectography noun A specific type of clinicoradiopathologic conference that was used in the early decades of radiography (circa 1900 until World War I)…
- retroversioflexion noun A displacement of the uterus in which the organ is both retroverted (tilted backward in the pelvis) and retroflexed (bent backward upon…
- retroversion noun A backward-tilting of an anatomical strucure (e.g. the uterus).
- Rett syndrome noun An inherited, neurological disease of (mostly female) children characterized by a small head and repetitive hand movements.
- revagination noun vaginal cosmetic surgery or other cosmetic treatment of the vagina.
- revascularization noun Vascular surgery or vascular interventional radiology, such as coronary artery bypass graft or percutaneous coronary intervention (coronary…
- reverse adj In which cDNA synthetization is obtained from an RNA template.
- reverse transcription noun The process of creating double-stranded DNA from a single-stranded RNA template (the reverse of the standard process).
- reverse-transmigratory neutrophil noun A type of neutrophil which can transmigrate from inflamed tissue back into the circulation, retaining its proinflammatory phenotype.
- reversion noun The return of a genetic characteristic after a period of suppression.
- revertant adj That has reverted to its former genotype or to the original phenotype by means of a subsequent mutation.
- revertent noun A remedy which restores the natural order of the inverted irritative motions in the animal system
- revulsion noun The treatment of one diseased area by acting elsewhere; counterirritation.
- revulsive noun That which causes revulsion; a revulsive remedy or agent.
- reward system noun A group of neural structures responsible for incentive salience, associative learning, and positively-valenced emotions, particularly ones…
- Reye's syndrome noun A potentially fatal disease that causes numerous detrimental effects to many organs, especially the brain and liver.
- rhabdomyolysis noun The rapid disintegration of striated muscle tissue accompanied by the excretion of myoglobin in the urine.
- rheoencephalography noun A technique for continuous registration of cerebral blood flow, using electrodes on the cranium attached to an electronic device called a…
- rhesus noun Alternative form of Rhesus.
- rheumatism noun Any disorder of the muscles, tendons, joints, bones, nerves, characterized by pain, discomfort and disability.
- rheumatoid adj Involving or pertaining to rheumatism, especially rheumatoid arthritis.
- rheumatoid arthritis noun A chronic and progressive disease in which the immune system attacks the joints. It is characterised by pain, inflammation and swelling of…
- rheumatoid factor noun An autoantibody directed against the Fc fragment of immunoglobulin G (IgG), often elevated in certain conditions including rheumatoid…
- rhinencephaly noun A form of cyclopia where the face is replaced with a non-functioning nose in the form of a proboscis
- rhinitis noun Inflammation of the mucous membranes of the nose.
- rhinitis sicca noun A type of chronic nasal inflammation where there is little to no nasal secretion, causing discomfort in breathing.
- rhinolalia aperta noun a disorder that causes abnormal resonance in a human's voice due to increased airflow through the nose during speech
- rhinophyma noun The condition of having a large, bulbous, ruddy nose caused by granulomatous infiltration, commonly due to untreated rosacea.
- rhinoplasty noun A type of plastic surgery that is used to improve the function (reconstructive surgery) or appearance (cosmetic surgery) of a person's nose.
- rhinoscleroma noun A rare skin disease with very hard, more or less flattened, prominences, appearing first upon the nose and subsequently upon the…
- rhizotomy noun The surgical procedure of cutting the anterior or posterior spinal nerve roots in order to relieve pain, or reduce muscle spasms.
- rhombencephalosynapsis noun A hindbrain malformation characterized by vermian agenesis and fusion of the cerebellar hemispheres.
- rhonchial adj Of or pertaining to a rhonchus
- rhonchopathy noun Rhonchus.
- rhupus noun A rare condition characterized by overlapping features of both rheumatoid arthritis and systemic lupus erythematosus.
- rib noun Any of a series of long curved bones occurring in 12 pairs in humans and other animals and extending from the spine to or toward the…
- rib cage noun A part of the skeleton within the thoracic area consisting of ribs, sternum and thoracic vertebrae.
- ribavirin noun A synthetic analog of guanosine with chemical formula C₈H₁₂N₄O₅ that inhibits viral nucleic acid synthesis and is used as a broad-spectrum…
- riboprobe noun A segment of RNA that is used to probe for a complementary sequence of nucleotides in a DNA or mRNA.
- riboregulator noun An RNA that regulates expression of itself or another nucleic acid in response to a signaling event.
- ribosome noun A small organelle found in all cells; involved in the production of proteins by translating messenger RNA.
- Ribot's law noun the hypothesis that there exists a time gradient in retrograde amnesia, where recent memories are more likely to be lost than more remote…
- ribotyping noun The analysis of restriction fragment length polymorphism of rRNA genes in order to differentiate between species etc.
- rickets noun A disorder of infancy and early childhood due to a deficiency of vitamin D, causing soft or weak bones.
- rickettsiosis noun Any severe infectious disease caused by several different bacteria of the order Rickettsiales and transmitted by parasitic arthropods.
- rickety adj Affected with or suffering from rickets; rachitic.
- RIDDLE syndrome noun A rare syndrome of which symptoms include facial dysmorphism, short stature, motor control and learning difficulties, ataxia, microcephaly…
- ride verb To overlap (each other); said of bones or fractured fragments.
- rider's bone noun An ossification in the muscles of the upper and inner part of a horse rider's thigh, due to the repeated pressure and irritation caused by…
- ridge noun The back of any animal; especially the upper or projecting part of the back of a quadruped.
- rifabutin noun A bactericidal antibiotic, primarily used in the treatment of tuberculosis, whose effect is based on blocking the DNA-dependent…
- rifampicin noun A reddish-brown semisynthetic antibiotic C₄₃H₅₈N₄O₁₂ obtained from the bacterium Amycolaptosis mediterranei, used chiefly to treat…
- rifamycin noun Any of a group of antibiotics, a subclass of the ansamycins, which are synthesized either naturally by the bacterium Amycolatopsis…
- riff noun The belly; the bowels.
- riflip noun A section of DNA whose length varies among individuals and which is delimited by a base which does not occur within it.
- Rift Valley fever noun A mosquito-borne, acute, febrile, viral disease of humans and animals, caused by an RNA virus of the genus Phlebovirus, which occurs in…
- right atrium noun The chamber of the heart, in humans and other mammals, that receives deoxygenated blood from the venae cavae and pumps it into the right…
- right lymphatic duct noun A short vessel that receives lymph from the right side of the head, neck, and thorax, the right arm, right lung, right side of the heart…
- rigor noun Ellipsis of rigor mortis.
- rigour noun A feeling of cold with shivering accompanied by a rise in body temperature.
- rilmenidine noun The heterocycle N-(dicyclopropylmethyl)-4,5-dihydro-1,3-oxazol-2-amine that is used in the treatment of hypertension
- rima noun A cleft or gap between two symmetrical parts, particularly between the vocal folds.
- rimantadine noun A synthetic antiviral drug that is chemically related to amantadine and is administered orally in the form of its hydrochloride C₁₂H₂₁N·HCl…
- Ringer's lactate solution noun A solution that is isotonic with blood and used for intravenous application in humans with significant blood loss.
- ringspot noun A symptom of various viral infections in plants, taking the form of rings or spots of damaged tissue.
- Rinne test noun A hearing test, used primarily for evaluating the loss of hearing in one ear, by comparing the perception of sounds transmitted by air…
- risedronate noun The conjugate base, or any salt or ester, of risedronic acid, used as a medication to inhibit bone loss in disorders of bone metabolism.
- risedronic acid noun A bisphosphonate C₇H₁₁NO₇P₂ taken orally to inhibit bone resorption especially in the prevention or treatment of osteoporosis in…
- risk equalisation noun A process that attempts to overcome differences in insurers’ costs due to differing levels of health among members of competing insurance…
- risk factor noun A variable associated with an increased risk of a medical condition.
- risorius noun A narrow band of facial muscle arising from the fascia over the masseter and inserting into the tissues at the corner of the mouth, which…
- risperidone noun A drug that is a combined serotonin and dopamine receptor antagonist, used in the treatment of psychotic disorders.
- ristocetin noun A toxic antibiotic, obtained from Amycolatopsis lurida, previously used to treat staphylococcal infections
- ritlecitinib noun A medication belonging to the class of Tec/Janus kinase inhibitors, used for the treatment of alopecia areata.
- ritodrine noun A sympathomimetic drug (beta-adrenoreceptor agonist) given by intravenous infusion in the form of its hydrochloride C₁₇H₂₁NO₃·HCl to reduce…
- ritonavir noun An antiretroviral drug C₃₇H₄₈N₆O₅S₂ of the protease inhibitor class that is administered orally to treat HIV-infected and AIDS patients.
- rituximab noun A chimeric monoclonal antibody (trademark Rituxan) administered by intravenous injection especially to treat non-Hodgkin lymphoma and…
- rivaroxaban noun An anticoagulant drug C₁₉H₁₈ClN₃O₅S (trademark Xarelto) that inhibits the activity of factor X and is taken orally especially to prevent…
- rivastigmine noun A drug C₁₄H₂₂N₂O₂ that increases acetylcholine levels by inhibiting the action of cholinesterase and is used to treat dementia associated…
- RLQ noun Initialism of right lower quadrant (of the human abdomen).
- RNA expression profile noun A diagram that shows the differing levels of gene expression of a particular gene / protein) in different parts of an organism