18-letter words containing a, d, g
- gregorian calendar — the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, as 1700, 1800, and 1900.
- growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
- grumbling appendix — a condition in which the appendix causes intermittent pain but appendicitis has not developed
- guidance counselor — advisor in schools
- gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
- hardy-weinberg law — a principle stating that in an infinitely large, randomly mating population in which selection, migration, and mutation do not occur, the frequencies of alleles and genotypes do not change from generation to generation.
- have (got) it made — to be assured of success
- have got to do sth — You use have got to when you are saying that something is necessary or must happen in the way stated. In informal American English, the 'have' is sometimes omitted.
- heating degree-day — a degree-day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption.
- heavy middleweight — a professional wrestler weighing 177–187 pounds (81–85 kg)
- hedge fund manager — a person in charge of managing a hedge fund and making its investments
- hegelian dialectic — an interpretive method, originally used to relate specific entities or events to the absolute idea, in which some assertible proposition (thesis) is necessarily opposed by an equally assertible and apparently contradictory proposition (antithesis) the mutual contradiction being reconciled on a higher level of truth by a third proposition (synthesis)
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- hidalgo y costilla — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1753–1811, Mexican priest, patriot, and revolutionist.
- high-grade mineral — a mineral fulfilling certain conditions as regards purity or other physical properties
- higher-order macro — A means of expressing certain higher-order functions in a first order language. Proposed by Phil Wadler. Higher-order macros cannot be recursive at the top level but they may contain recursive definitions. E.g. See partial evaluation.
- house of delegates — the lower house of the General Assembly in Virginia, West Virginia, and Maryland.
- identification tag — either of two oblong metal tags, issued to armed forces personnel, on which are impressed the serial number, name, etc., of the person to whom it is issued, and carried on or about the person at all times.
- impedance matching — the technique of choosing or adjusting electric circuits and components so that the impedance of the load is equal to the internal impedance of the power source, thereby optimizing the power transfer from source to load.
- in good/bad repair — If something such as a building is in good repair, it is in good condition. If it is in bad repair, it is in bad condition.
- in-band signalling — (communications) (Or CAS, channel associated signaling) Transmission of control signals in the same channel as data. This is commonly used in the Public Switched Telephone Network where the same pair of wires carry both voice and control signals (e.g. dialling, ringing). Another example is the use on a computer serial line of Control-S and Control-Q characters for flow control as opposed to hardware flow control which would be out-of-band signalling. In digital communications, in-band signalling often uses "bit-robbing" where, for example, one bit in each frame is used for signalling instead of data. This is the reason why a D1 channel in the T-carrier system can only carry 56 Kbps of usable data instead of the 64 Kbps carried by the D0 channel in the E-carrier system.
- incidental charges — Incidental charges are costs of items and services that are not part of the main bill.
- incidental damages — law: incurred by contract breach
- indiscriminatingly — In an indiscriminating manner.
- induction training — training intended to enable new staff and recruits to do their work
- industrial hygiene — the science that assesses, controls, and prevents occupational factors or sources of stress in the workplace that may significantly affect the health and well-being of employees or of the community in general
- instrument landing — an aircraft landing accomplished by use of gauges on the instrument panel and ground-based radio equipment, with limited reference to outside visual signals.
- integrated circuit — a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbreviation: IC.
- integrated studies — a course that includes a number of subjects and is organized by theme
- interlacing arcade — an arcade, especially a blind one, composed of arches (interlacing arches) so arranged and cut that each arch seems to intersect and be intersected by one or more other arches.
- ionizing radiation — any radiation, as a stream of alpha particles or x-rays, that produces ionization as it passes through a medium.
- knight of the road — a tramp
- labeled bracketing — a representation of the constituent structure of a string, as a word or sentence, comparable to a tree diagram, in which each constituent is shown in brackets and given a subscript grammatical label, with each bracketed item corresponding to a node in a tree diagram.
- land grant college — a state university established with a grant of public land
- land-grant college — a U.S. college or university (land-grant university) entitled to support from the federal government under the provisions of the Morrill Acts.
- landscape gardener — sb who designs gardens
- landscape painting — art: depicting natural scenery
- laning and zierler — (language) Possibly the first true working algebraic compiler. Written by J.H. Laning Jr and N. Zierler in 1953-1954 to run on MIT's Whirlwind computer.
- laugh like a drain — to laugh loudly and coarsely
- laying on of hands — Theology. a rite in which the cleric's hands are placed on the head of a person being confirmed, ordained, or the like.
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- limit-state design — a design criterion specifying that with acceptable probabilities a structure will not reach a limit state in which it either is unfit for the use for which it was designed (unavailability limit state) or fails (ultimate limit state)
- limiting adjective — (in English and some other languages) one of a small group of adjectives that modify the nouns to which they are applied by restricting rather than describing or qualifying. This, some, and certain are limiting adjectives.
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- long-distance call — phone call: not local area
- madagascar jasmine — a Madagascan twining, woody vine, Stephanotis floribunda, of the milkweed family, having waxy-white, fragrant flowers.
- magnesium peroxide — a white, tasteless, water-insoluble powder, MgO 2 , used as an antiseptic and as an oxidizing and bleaching agent.
- magnetic induction — Also called magnetic flux density. a vector quantity used as a measure of a magnetic field. Symbol: B.
- magnetic recording — the process of recording sound or other data on magnetic tape, wire, etc.
- magnetogasdynamics — magnetohydrodynamics.