This page gathers the 9,098 dictionary entries belonging to the domain “Engineering”, as labelled by Wiktionary. Each word leads to its full entry: definitions, etymology, pronunciation, examples. Page 42 of 91: from “Jefferson disk” to “keystring”.
- Jefferson disk noun Any of a set of stackable disks, each having the letters of the alphabet arranged in some sequence around its edge, used in a cipher system.
- jellybean part noun A commonly available electronic component that may be readily replaced with similar ones, often made by different manufacturers.
- jerk noun The rate of change in acceleration with respect to time.
- Jesus nut noun The nut that holds the main rotor to the mast of some helicopters.
- jet noun A type of airplane using jet engines rather than propellers.
- jet bridge noun An elevated, usually enclosed, corridor connecting an airport to an aeroplane for embarking and disembarking crew and passengers.
- jet fuel noun The fuel that powers a jet aircraft.
- jet lag noun A physical condition caused by crossing time zones during flight; often the result of disruption to the circadian rhythms of the body.
- jet pack noun A piece of equipment that may be strapped to a person’s back and generate vertical thrust by a downward discharge of jet fluid, thereby…
- jetevator noun A control surface used to redirect the exhaust from a rocket and thus change its direction of thrust.
- jetty noun In full air jetty: synonym of jet bridge (“an elevated, usually enclosed, corridor connecting an airport to an aeroplane for embarking and…
- jiffy noun A unit of time defined by the frequency of its basic timer – historically, and by convention, 0.01 of a second, but some computer operating…
- jiggle mode noun The editable state of a home screen, in which application icons, folders, and widgets oscillate to indicate that the user can rearrange or…
- Jim Crow noun A double-action planing tool invented by Joseph Whitworth, in which the blade ‘jumps’ to face the other way on the back-stroke.
- jit verb To perform a just-in-time operation (usually compiling).
- jitter noun An abrupt and unwanted variation of one or more signal characteristics.
- JMP noun An unconditional jump, i.e., a transfer of the flow of program execution to a different point in the instruction stream without any…
- job noun A task, or series of tasks, carried out in batch mode (especially on a mainframe computer).
- job scheduler noun A software application that is in charge of unattended background executions known for historical reasons as batch processing.
- jock noun A specialist computer programmer.
- joe job noun An act of e-mail spamming where the sender's identity and address are those of an innocent third party, intended either to tarnish that…
- joggle noun A step formed in material by two adjacent reverse bends.
- Johnson thermoelectric energy converter noun An electrochemical heat engine, with no moving parts, which can take a heat source and convert it to electric power, or take electric power…
- JOI noun Initialism of Jupiter orbital insertion.
- join noun An intersection of data in two or more database tables.
- join point noun In aspect-oriented programming, a point at which advice (additional code) is triggered (a set of these constituting a pointcut).
- joint entropy noun The Shannon entropy of a "script" whose "characters" are elements of the Cartesian product of the sets of characters of the component…
- jolt noun The rate of change in acceleration with respect to time.
- journal noun A chronological record of changes made to a database or other system; along with a backup or image copy that allows recovery after a…
- journal bearing noun A simple bearing in which part of the outer surface of a cylindrical shaft, the “journal”, slides on the inner surface of a cylindrical…
- journaling noun The change log of the file system or database.
- joyhop noun A flight taken for pleasure.
- JPEG noun An image using the JFIF image file format, containing an image compressed using JPEG compression.
- JSP noun Initialism of jacketed soft point.
- juice jacking noun The act of stealing information from mobile devices by placing a data-stealing device that appears to be a charging station in a place…
- jukebox noun A software application capable of replaying tracks from a digital music collection.
- jumbo noun A platform-mounted machine for drilling rock.
- jumbogram noun An Internet-layer packet exceeding the standard maximum transmission unit of the underlying network technology.
- jump noun A change of the path of execution to a different location.
- jump box noun Synonym of jump server.
- jump drive noun A USB flash drive.
- jump list noun A kind of sorted linked list with additional pointers to connect data items that are various distances apart.
- jump out verb To exit a loop, function, etc. ending its execution before it has reached its terminating condition.
- jump server noun A hardened device on a network that spans two dissimilar security zones and provides a controlled means of access between them.
- jumper noun A removable connecting pin on an electronic circuit board.
- jumpered adj Fitted with a jumper.
- jumpseating noun The situation where off-duty airline staff are permitted to travel for free, occupying unbooked seats in an aircraft.
- junction noun A kind of symbolic link to a directory.
- junction box noun A box through which the main conductors of a system of electric distribution pass, and where connection is made with branch circuits or to…
- junk wad noun A plug made of oakum bound with spun yarn and designed to keep the powder and shot in place when loading a gun or cartridge.
- just in time adj Performing compilation of code on the client machine immediately before execution.
- justifier noun A machine, program or algorithm that justifies text by aligning it.
- k noun A kilobyte (more formally KB or kB).
- k-d tree noun A space-partitioning data structure for organizing points in a k-dimensional space, used in search algorithms etc.
- K-factor noun The number of pulses expected for every volumetric unit of fluid passing through a given flowmeter.
- Karatsuba algorithm noun A fast multiplication algorithm that reduces the multiplication of two n-digit numbers to at most n^(log ₂₃)≈n^(1.585) single-digit…
- Karp reduction noun A polynomial-time algorithm for transforming inputs to one problem into inputs to another problem, such that the transformed problem has…
- kata noun A short programming exercise to improve one's skills through practice and repetition.
- katana noun A type of Japanese longsword, having a single edge and slight curvature, historically used by samurai and ninja.
- kayles noun A simple impartial game in combinatorial game theory, in which players take turns to knock out one pin or two adjacent pins from a line of…
- kb symbol Abbreviation of kbit.
- kebab noun A menu icon of three vertical dots.
- keel noun In a dirigible, a construction similar in form and use to a ship's keel; in an aeroplane, a fin or fixed surface employed to increase…
- keep noun A cap for holding something, such as a journal box, in place.
- keep in verb To keep a telephone call active or queued so that the operators can try the number again later.
- keepalive noun A short message sent by one device to another to check that the link between the two is operating, or to prevent this link from being…
- kernel noun The central part of many computer operating systems which manages the system's resources and the communication between hardware and…
- kernel panic noun On Unix-derived operating systems, an action taken by the operating system when it cannot recover from a fatal error, where the system…
- kernelization noun A technique for creating algorithms for fixed-parameter tractable problems, involving a preprocessing stage in which inputs to the…
- kerolox noun A type of binary rocket fuel composed of liquid oxygen (lox) oxidizer and liquid kerosene combustible.
- kettle lead noun The similar-looking C13/C14 coupler lead, commonly used to power computer equipment.
- key noun A piece of information (e.g., a password or passphrase) used to encode or decode a message or messages.
- key encapsulation mechanism noun A mechanism for sharing a secret key securely between recipients, despite the presence of adversaries.
- key logger noun Software or hardware designed to record keyboard entries, often for the purpose of stealing passwords or other sensitive data.
- key off verb To take something as a controlling input datum.
- key stretching noun Techniques used to make a key more secure against brute force attacks by increasing the resources needed to test each possible key.
- keyboard noun A set of keys laid out in a gridlike pattern, used for typing on a typewriter, computer, etc.
- keyboard shortcut noun A key, or more usually a combination of keys, on the keyboard of a personal computer that activates a specific, predefined function; a…
- keyboardable adj Usable with a keyboard as the only input device.
- keybounce noun Multiple recorded keystrokes from a single press of a key on a computer keyboard due to poor electrical contact.
- keychain noun A digital repository for the storage of cryptographic keys.
- keycode noun A code that represents a keypress.
- keyed adj Having a key, mated to a keyseat and/or keyway, to either control or prevent movement.
- keyframe noun A complete video frame, used as a reference for subsequent interframes in video compression.
- keygen noun A small program used to generate a license key used to unlock a trial version of software illegitimately.
- keyholder noun The individual or organization with access to a cryptographic key.
- keyholding adj That stores or holds a cryptographic key.
- keyhole verb To strike a target after wobbling in flight so that the long axis of the bullet does not follow the line of flight, typically due to…
- keyholing noun The tendency of a bullet fired down an excessively large barrel to wobble in flight and leave a keyhole-shaped puncture in the target.
- keylock noun A physical lock on the case of a computer, preventing use of the keyboard until unlocked.
- keyness noun The statistical significance of a keyword's frequency in a given corpus, relative to a reference corpus.
- keyphrase noun A phrase used in encryption as a key, like a single keyword (password).
- keypress noun The buffered electrical signal resulting from such an event, sometimes distinguished from the release.
- keypunch noun A mechanical device whose keys are pressed, individually or in combination, to punch holes in punched cards or paper tape that correspond…
- keypuncher noun A keypunch.
- keyring noun A set of data holding linked encryption keys.
- keyset noun An input device whose few keys can be pressed in many combinations, often simultaneously, to enter different commands or characters.
- keyspace noun The notional space that contains all possible cryptographic keys.
- keystream noun A stream of random or pseudorandom characters that are combined with the plaintext to produce a ciphertext.
- keystring noun Any string of characters that has key (high) importance, such as a keyword or a keyphrase, but not necessarily a word in all senses of that…