18-letter words containing r, o, l, e, t
- fringe-toed lizard — an iguanid lizard, Uma notata, of sandy deserts of the western U.S. and Mexico, having a wedge-shaped snout and toes fringed with long, pointed scales.
- fuller rose beetle — a beetle, Pantomorus godmani, that feeds on the leaves of roses as well as on those of citrus and other fruit trees.
- fulminating powder — powder that explodes by percussion.
- garbage collection — (programming) (GC) The process by which dynamically allocated storage is reclaimed during the execution of a program. The term usually refers to automatic periodic storage reclamation by the garbage collector (part of the run-time system), as opposed to explicit code to free specific blocks of memory. Automatic garbage collection is usually triggered during memory allocation when the amount free memory falls below some threshold or after a certain number of allocations. Normal execution is suspended and the garbage collector is run. There are many variations on this basic scheme. Languages like Lisp represent expressions as graphs built from cells which contain pointers and data. These languages use automatic dynamic storage allocation to build expressions. During the evaluation of an expression it is necessary to reclaim space which is used by subexpressions but which is no longer pointed to by anything. This reclaimed memory is returned to the free memory pool for subsequent reallocation. Without garbage collection the program's memory requirements would increase monotonically throughout execution, possibly exceeding system limits on virtual memory size. The three main methods are mark-sweep garbage collection, reference counting and copying garbage collection. See also the AI koan about garbage collection.
- garden loosestrife — any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)
- gas-cooled reactor — a nuclear reactor using a gas as the coolant. In the Mark I type the coolant is carbon dioxide, the moderator is graphite, and the fuel is uranium cased in magnox
- gastroenterologist — the study of the structure, functions, and diseases of digestive organs.
- general contractor — a person who contracts to construct a building or buildings, for a stipulated sum, in accordance with certain plans and specifications, or to remodel or build an addition to a building
- genetic algorithms — genetic algorithm
- gentleman-commoner — (formerly) a member of a class of commoners enjoying special privileges at Oxford University.
- 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.
- germline insertion — the insertion of cloned genes into the egg or sperm cell of an organism, using a gene transfer technique, in order to perpetuate a desired trait in its descendants, as pest-resistance in a crop plant.
- gilbert and george — a team of artists, Gilbert Proesch, Italian, born 1942, and George Passmore, British, born 1943: noted esp for their photomontages and performance works
- glomerulonephritis — a kidney disease affecting the capillaries of the glomeruli, characterized by albuminuria, edema, and hypertension.
- glyceryl trioleate — olein.
- go for the jugular — Anatomy. of or relating to the throat or neck. noting or pertaining to any of certain large veins of the neck, especially one (external jugular vein) collecting blood from the superficial parts of the head or one (internal jugular vein) collecting blood from within the skull.
- going to jerusalem — musical chairs.
- golden bantam corn — a horticultural variety of sweet corn having yellow kernels.
- golden gate bridge — a bridge connecting N California with San Francisco peninsula. 4200-foot (1280-meter) center span.
- golden opportunity — perfect chance
- granulation tissue — tissue formed in ulcers and in early wound healing and repair, composed largely of newly growing capillaries and so called from its irregular surface in open wounds; proud flesh.
- gravitational lens — a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
- gravitational wave — (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
- grease the palm of — to influence by giving money to; bribe
- greater yellowlegs — either of two American shorebirds having yellow legs, Tringa melanoleuca (greater yellowlegs) or T. flavipes (lesser yellowlegs)
- grist for the mill — If you say that something is grist for the mill, you mean that it is useful for a particular purpose or helps support someone's point of view.
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- hamilton's problem — Hamiltonian problem
- harnessed antelope — any African antelope of the genus Tragelaphus, especially the bushbuck, having the body marked with white stripes and spots that resemble a harness, and, in the male, long, gently spiraling horns.
- haulage contractor — a person or firm that transports goods by lorry
- health care worker — A health care worker is someone who works in a hospital or health centre.
- hearts and flowers — maudlin sentimentality: The play is a period piece, full of innocence abused and hearts and flowers.
- helicopter gunship — military attack helicopter
- helicopter station — a place where helicopters are kept in readiness for use
- hell or high water — whatever difficulties may arise
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- hilary of poitiers — Saint, a.d. c300–368, French bishop and theologian.
- historical geology — the branch of geology dealing with the history of the earth.
- historical present — the present tense used in narrating a past event as if happening at the time of narration.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- home of the hirsel — Baron, title of Sir Alec Douglas-Home, formerly 14th Earl of Home. 1903–95, British Conservative statesman: he renounced his earldom to become prime minister of Great Britain and Northern Ireland (1963–64); foreign secretary (1970–74)
- 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.
- hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
- hotel receptionist — a person who looks after guests when they first arrive at a hotel, checking them in, giving them their keys, etc
- houghton-le-spring — a town in N England, in Sunderland unitary authority, Tyne and Wear: coal-mining. Pop: 36 746 (2001)
- hydroflumethiazide — A diuretic drug.
- hydrogen electrode — a standard reference electrode with a potential of zero, used in pH measurements, consisting of a platinum-black surface covered with hydrogen bubbles.
- hydroxynaphthalene — naphthol.
- hyper-metaphorical — a figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in “A mighty fortress is our God.”. Compare mixed metaphor, simile (def 1).
- hyperaldosteronism — aldosteronism.