18-letter words containing a, i, m
- general san martin — a city in E Argentina, a suburb of Buenos Aires.
- generative grammar — a linguistic theory that attempts to describe the tacit knowledge that a native speaker has of a language by establishing a set of explicit, formalized rules that specify or generate all the possible grammatical sentences of a language, while excluding all unacceptable sentences. Compare transformational grammar.
- genetic algorithms — genetic algorithm
- genital mutilation — any type of cutting or removal of all or some of the genital organs, especially excision of the clitoris.
- gensym corporation — (company) A company that supplies software and services for intelligent operations management. Common applications include quality management, process optimisation, dynamic scheduling, network management, energy and environmental management, and process modelling and simulation. Their products include G2.
- geometrical optics — the branch of optics dealing with light as rays, especially in the study of the effects of lenses and mirrors on light beams and of their combination in optical instruments.
- german east africa — a former German territory in E Africa, the area now comprised of continental Tanzania and the independent republics of Rwanda and Burundi.
- giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
- give someone a row — to scold someone; tell someone off
- give someone pause — to make someone hesitant or uncertain
- give the game away — to reveal one's intentions or a secret
- glycosaminoglycans — Plural form of glycosaminoglycan.
- go with the stream — to conform to the accepted standards
- going to jerusalem — musical chairs.
- good samaritan law — a law that exempts from legal liability persons, sometimes only physicians, who give reasonable aid to strangers in grave physical distress.
- grammatical gender — gender based on arbitrary assignment, without regard to the referent of a noun, as in French le livre (masculine), “the book,” and German das Mädchen (neuter), “the girl.”.
- grampian mountains — a mountain system of central Scotland, extending from the southwest to the northeast and separating the Highlands from the Lowlands. Highest peak: Ben Nevis, 1344 m (4408 ft)
- gravitational mass — the mass of a body as measured by its gravitational attraction for other bodies.
- gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
- greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
- grumbling appendix — a condition in which the appendix causes intermittent pain but appendicitis has not developed
- gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
- gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
- haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
- hamilton's problem — Hamiltonian problem
- hand it to someone — to give credit to someone
- handyman's special — fixer-upper.
- have (got) it made — to be assured of success
- head disk assembly — (hardware, storage) (HDA) A sealed, high capacity mainframe hard disk with integral heads, as opposed to a removable disk.
- hearing impairment — partial deafness
- heart-lung machine — a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
- heart-rate monitor — a machine that monitors or records a person's heart rate
- heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
- heavy middleweight — a professional wrestler weighing 177–187 pounds (81–85 kg)
- hebdomadal council — the governing council or senate of Oxford University
- heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
- hemidemisemiquaver — a sixty-fourth note.
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- high-grade mineral — a mineral fulfilling certain conditions as regards purity or other physical properties
- higher mathematics — the advanced portions of mathematics, customarily considered as embracing all beyond ordinary arithmetic, geometry, algebra, and trigonometry.
- 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.
- histamine headache — cluster headache.
- histocompatibility — the condition of having antigenic similarities such that cells or tissues transplanted from one (the donor) to another (the recipient) are not rejected.
- histomorphological — histology.
- home entertainment — the aggregate of appliances, as stero systems, television, videocassette recorders, or computers, used for diversion in the home.
- honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
- honour moderations — (at Oxford University) the first public examination, in which candidates are placed into one of three classes of honours
- honourable mention — If something that you do in a competition is given an honourable mention, it receives special praise from the judges although it does not actually win a prize.
- human rights group — a group that campaigns for human rights
- hydrocinnamic acid — a white crystalline compound, C 9 H 10 O 2 , with a floral odor, used in perfumes and flavoring.