18-letter words containing y, r
- fissure of sylvius — lateral fissure.
- five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
- fixed-term tenancy — a tenancy arrangement for a particular and fixed period
- fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
- forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
- fragile x syndrome — a widespread form of mental retardation caused by a faulty gene on the X chromosome.
- fragile-x syndrome — an inherited condition characterized by learning disability: affected individuals have an X-chromosome that is easily damaged under certain conditions
- free-range poultry — poultry kept in natural nonintensive conditions
- frequency function — probability density function (def 2).
- frequency response — the effectiveness with which a circuit, device, or system processes and transmits signals fed into it, as a function of the signal frequency.
- frequency spectrum — The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.
- gamblers anonymous — an organization that holds group meetings to help people who are addicted to gambling
- gas chromatography — a chromatograph used for the separation of volatile substances.
- gastroduodenostomy — See under gastroenterostomy.
- general relativity — the state or fact of being relative.
- 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.
- geodetic surveying — the surveying of the earth's surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
- gettysburg address — the notable short speech made by President Lincoln on November 19, 1863, at the dedication of the national cemetery at Gettysburg, Pa.
- give someone curry — to assault (a person) verbally or physically
- glyceryl trioleate — olein.
- go down in history — If someone or something goes down in history, people in the future remember them because of particular actions that they have done or because of particular events that have happened.
- golden opportunity — perfect chance
- gopher object type — A character specifying how to display a Gopher document. Current types are: 0 document 1 menu 2 CSO phone book entity 3 error 4 binhex binary 5 DOS binary (deprecated) 6 UU binary (deprecated) 7 index search 8 telnet connection 9 binary + duplicate server for previous object I image M MIME document T tn3270 based telnet connection c cal g GIF image h HTML s binary u {Usenet} newsgroup (1999-10-14)
- graduated cylinder — a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.
- grand canyon state — Arizona (used as a nickname).
- grand penitentiary — See under penitentiary (def 3).
- grand traverse bay — an inlet of Lake Michigan on the NW of the Lower Peninsula of Michigan.
- 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.
- gray manganese ore — manganite.
- great sandy desert — a desert in NW Australia. About 300 miles (485 km) long; 500 miles (800 km) wide; about 160,000 sq. mi. (414,400 sq. km).
- greater yellowlegs — either of two American shorebirds having yellow legs, Tringa melanoleuca (greater yellowlegs) or T. flavipes (lesser yellowlegs)
- green-eyed monster — jealousy: Othello fell under the sway of the green-eyed monster.
- growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
- gulf stream system — a major ocean-current system consisting of the Gulf Stream and the Florida and North Atlantic currents.
- gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
- ha ha only serious — (SF fandom, originally as mutation of HHOK, "Ha Ha Only Kidding") A phrase (often seen abbreviated as HHOS) that aptly captures the flavour of much hacker discourse. Applied especially to parodies, absurdities, and ironic jokes that are both intended and perceived to contain a possibly disquieting amount of truth, or truths that are constructed on in-joke and self-parody. The Jargon File contains many examples of ha-ha-only-serious in both form and content. Indeed, the entirety of hacker culture is often perceived as ha-ha-only-serious by hackers themselves; to take it either too lightly or too seriously marks a person as an outsider, a wannabee, or in larval stage. For further enlightenment on this subject, consult any Zen master. See also AI koan.
- 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.
- haud your wheesht! — be silent! hush!
- have by the throat — to have compete control over (a person or thing)
- have eyes only for — the organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina.
- have money to burn — to have more money than one needs, so that some can be spent foolishly
- heating degree-day — a degree-day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption.
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- hexachlorobiphenyl — (organic compound) Either of forty-two isomers of the polychlorinated biphenyl containing six chlorine atoms.
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- highbush blueberry — a spreading, bushy shrub, Vaccinium corymbosum, of eastern North America, having small, urn-shaped, white or pinkish flowers, and bluish-black edible fruit, growing about 10 feet (3 meters) high.
- highbush cranberry — a shrub, Viburnum trilobum, of northern North America, having broad clusters of white flowers and edible scarlet berries.
- 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.