This page gathers the 10,116 dictionary entries belonging to the domain “Chemistry”, as labelled by Wiktionary. Each word leads to its full entry: definitions, etymology, pronunciation, examples. Page 1 of 101: from “-a-” to “acetoin”.
- -a- infix Replacing carbon, especially in a ring.
- -al suffix Forms the names of aldehydes.
- -amic suffix amic.
- -ane suffix A saturated hydrocarbon; an alkane.
- -ate suffix forms derivatives of specified elements or compounds; especially salts or esters of an acid whose name ends in -ic
- -diene suffix An unsaturated hydrocarbon with two double bonds; a diene
- -ene suffix An unsaturated hydrocarbon having at least one double bond; an alkene.
- -ic suffix Used to denote certain chemical compounds in which a specified chemical element has a higher oxidation number than in the equivalent…
- -idine suffix Denotes a chemical compound containing a ring containing nitrogen
- -in suffix A neutral chemical compound.
- -ine suffix Used to form names of chemical substances, especially basic (alkaline) substances, alkaloidal substances, or halogen elements.
- -ite suffix Used to form names of certain chemical compounds, especially salts or esters of acids whose name ends in -ous.
- -ium suffix Used to form the names of metal elements, after the style of early-named elements, as well as the isotopes of hydrogen.
- -leptic suffix Describing a coordination compound having some type(s) of ligand.
- -mer suffix Used to form words relating to chemical structure, denoting parts of a molecule, for example, monomer (one part), dimer (two parts)…
- -ol suffix An alcohol or phenol.
- -ole suffix in the Hantzsch–Widman nomenclature for naming heterocycles, denotes an unsaturated five-membered ring system with nitrogen
- -on suffix Forming names of noble gases and certain nonmetal elements.
- -onic suffix Used to form the names of acids derived from aldoses by the oxidation of the aldehyde group (e.g., gluconic acid).
- -onium suffix Used to form the name of polyatomic cations. Common examples are quaternary ammonium compounds used as neuromuscular blocking agents…
- -ose suffix Used to form the names of sugars.
- -ous suffix Used in chemical nomenclature to name chemical compounds in which a specified chemical element has a lower oxidation number than in the…
- -oxy suffix An ether functional group, consisting of a carbon chain with an intervening oxygen atom at the attachment point.
- -philite suffix Forming names of minerals associated with a substance.
- -sterone suffix Steroid hormone.
- -um suffix Forms the ends of the names of certain elements (such as molybdenum and platinum).
- -yl suffix A univalent radical or functional group formed from a given molecule. Thus propyl from propane, benzyl from benzene, and so forth.
- -ylene suffix used to form the names of bivalent radicals
- -ylidene suffix Bivalent radical derived especially from a saturated hydrocarbon by removal of two hydrogen atoms from the same carbon atom or the removal…
- -yne suffix An unsaturated hydrocarbon having at least one triple bond; an alkyne.
- 1-bromo-3-chloropropane noun A haloalkane with the molecular formula C₃H₆BrCl. It consists of a straight three-carbon propane chain with a bromine atom on carbon 1 and…
- 1-methyl-4-phenylpyridinium noun MPP+, the active metabolite of MPTP.
- 2-benzylbenzimidazole noun A compound that acts as a potential analgesic medication; a benzimidazole core with a benzyl group attached to the nitrogen atom at the…
- 3′ end noun A nucleic acid strand which terminates at the hydroxyl (-OH) chemical group attached to the third carbon in the sugar ring.
- 4-methylumbelliferylguanidinobenzoate noun A synthetic fluorogenic compound used as a laboratory substrate, designed to release a fluorescent signal when cleaved by specific enzymes…
- 5′ cap noun A specially altered nucleotide end to the 5′ end of precursor messenger RNA and some other primary RNA transcripts as found in eukaryotes…
- 5′ end noun A nucleic acid strand which terminates at the chemical group attached to the fifth carbon in the sugar ring.
- 7-dehydrocholesterol noun A zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D3 in the skin.
- a symbol Mass number.
- A1C noun Ellipsis of hemoglobin A1c (“glycated hemoglobin”).
- aa noun Initialism of amino acid.
- ab noun Abbreviation of alkylbenzene.
- abamine noun The compound methyl {[(2E)-3-(3,4-dimethoxyphenyl)prop-2-en-1-yl](4-fluorobenzyl)amino}acetate that inhibits epoxycarotenoid dioxygenase
- abasic adj Missing a nucleotide base.
- Abel test noun A test to determine the flash point of a volatile oil.
- abelite noun An explosive consisting of ammonium nitrate with hydrocarbons added.
- abenakiite noun A mineral of sodium, cerium, neodymium, lanthanum, praseodymium, thorium, samarium, oxygen, sulfur, carbon, phosphorus, and silicon.
- abernathyite noun A rare hydrous uranium oxide mineral that forms yellow vitreous tabular crystals with perfect cleavage.
- abieslactone noun The triterpenoid lactone…
- abietatriene noun The diterpene (4aS,10aS)-1,1,4a-trimethyl-7-propan-2-yl-2,3,4,9,10,10a-hexahydrophenanthrene related to abietane
- abietic adj Of or pertaining to abietic acid or its derivatives
- abietic acid noun A yellowish resin acid isolated from rosin and used in varnishes and esters for plasticizers; C₁₉H₂₉COOH.
- abietin noun A resin obtained from Strasburg turpentine or Canada balsam. It is without taste or smell, is insoluble in water, but soluble in alcohol…
- abietite noun A substance resembling mannite, found in the needles of the common silver fir of Europe (Abies alba).
- ablution noun Originally, the purifying of oils and other substances by emulsification with hot water; now more generally, a thorough cleansing of a…
- abporal adj Located to the side of an ectoaperture such as a pore. Typically used in reference to an abporal lacuna or hemisphere.
- abs noun Initialism of all-black stuff: i.e. acrylonitrile butadiene styrene, referring to the black color of the waste water.
- abscisic acid noun A terpenoid best known as a plant hormone that inhibits seed germination and was once thought to be important in abscission.
- abscissin noun A plant hormone controlling the dropping off or abscission of certain plant parts, notably the leaves of trees in autumn or cotton bolls.
- absinthol noun A monoterpene ketone that is a major constituent of the essential oil of wormwood, C₁₀H₁₆O; thujone.
- absolute noun A concentrated natural flower oil, used for perfumes; an alcoholic extract of a concrete.
- absorb verb To take in energy and convert it.
- absorbent noun A liquid used in the process of separating gases or volatile liquids, in oil refining.
- absorption noun the imbibing or reception by molecular or chemical action, of radiant energy; the process of being neutrons being absorbed by the nucleus…
- abstraction noun A separation of volatile parts by the act of distillation.
- abukumalite noun A mineral, (Ca,Y)₅(P,Si)₃O₁₂(OH,F), that can contain uranium or thorium. The mineral was renamed britholite-(Y) in 1966 because of its…
- ac noun Initialism of adenylyl cyclase.
- acalymmate adj Forming clusters of pollen grains (usually tetrads or polyads) in which the sexines of the respective grains do not merge to form a…
- acanthoic acid noun The diterpenoid carboxylic acid (1R,4aR,7S)-7-ethenyl-1,4a,7-trimethyl-3,4,6,8,8a,9,10,10a-octahydro-2H-phenanthrene-1-carboxylic acid…
- accelerant noun In the context of fire protection, a substance that accelerates the development of a fire, especially some hydrocarbon-based fuel used to…
- accelerator noun A substance which speeds up chemical reactions.
- accelerostat noun A continuous culture in which, after reaching a steady state as in a chemostat, dilution rate is increased smoothly at a constant rate of…
- acceptor noun An atom or molecule which can accept an electron to form a chemical bond.
- accessory mineral noun any mineral that is present in small amounts in a rock, but is not considered to be characteristic of the rock
- ace noun Initialism of angiotensin converting enzyme.
- aceanthrylene noun A polycyclic aromatic hydrocarbon containing an unsaturated five-membered ring ortho- and peri-fused to the 1- and 9- positions of…
- acecainide noun A metabolite (4-(acetylamino)-n-(2-(diethylamino)ethyl)benzamide) of procainamide that may cause cardiac toxicity in kidney failure
- acedoben noun 4-acetamidobenzoic acid, a component of some pharmaceutical preparations including inosine pranobex.
- acemetacin noun A nonsteroidal anti-inflammatory drug used for the treatment of osteoarthritis, rheumatoid arthritis, lower back pain, and postoperative…
- acenaphthene noun A hydrocarbon, found in coal tar, derived from naphthalene by the addition of a short aliphatic bridge.
- acenaphthoquinone noun A polycyclic aromatic quinone derived from acenaphthene, used as an intermediate for the manufacturing of dyes, pharmaceuticals and…
- acenaphthylene noun A polycyclic aromatic hydrocarbon containing an unsaturated five-membered ring ortho- and peri-fused to the 1- and 9- positions of…
- acephenanthrene noun A polycyclic aromatic hydrocarbon containing an unsaturated five-membered ring ortho- and peri-fused to the 1- and 9- positions of…
- acerate noun A combination of aceric acid with a salifiable base.
- acertannin noun The tannin 1,5-anhydro-2,6-bis-O-(3,4,5-trihydroxybenzoyl)-D-glucitol present in leaves of the maple Acer ginnala
- acetaldehyde noun A colourless organic compound, CH₃CHO, occurring widely in nature and being produced on a large scale in industry.
- acetamidation noun Any reaction that adds the elements of acetamide to a compound, or creates a derivative of acetamide
- acetamidoacrylate noun The acetamido derivative of an acrylate; methyl 2-acetamidoacrylate is used to make specialist polymers
- acetamidobenzoate noun The acetamido derivative of a benzoate; deanol acetamidobenzoate is a central nervous system stimulant
- acetanilide noun the amide derived from acetic acid and aniline; once used medicinally as an analgesic and antipyretic
- acetarsol noun The compound (3-acetamido-4-hydroxyphenyl)arsonic acid sometimes used as an antiinfective against the parasite protozoan Entamoeba…
- acetate noun Any ester or salt of acetic acid.
- acetator noun A device wherein bacteria process a liquid containing alcohol with the help of oxygen into carboxylic acid.
- acetic adj Of, pertaining to, or producing vinegar.
- acetic acid noun A clear colourless organic acid, CH₃COOH, formed by the bacterial oxidation of ethanol through acetic fermentation; it is used as a solvent…
- acetoacetic acid noun The ketonic carboxylic acid CH₃-CO-CH₂-COOH, that is present in the urine of people suffering from starvation or some forms of diabetes.
- acetoacetylaminobenzene noun A chemical compound composed of the acetoacetyl functional group connected to the nitrogen atom of aniline.
- acetogenic adj Capable of converting carbon dioxide or sugars into acetic acid or acetate; used especially of bacteria.
- acetohydroxamate noun The conjugate base of acetohydroxamic acid, which coexists with it in solution according to pH balance and buffering systems (as with the…
- acetoin noun The compound 3-hydroxybutanone CH₃-CO-CH(OH)-CH₃ that is one of the constituents of the flavour of butter