18-letter words containing n, a, i, r, e
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- grand penitentiary — See under penitentiary (def 3).
- 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.
- grasshopper engine — a steam engine having a piston attached to one end of a beam that is hinged to an upright at the other end, the connecting rod being suspended from near the center of the beam.
- 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.
- 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.
- great expectations — a novel (1861) by Charles Dickens.
- greater periwinkle — a Eurasian apocynaceous evergreen plant of the genus Vinca, V. major, having trailing stems and blue flowers
- greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
- 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.
- grosse pointe park — a city in SE Michigan, near Detroit.
- 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
- 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.
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- hamilton's problem — Hamiltonian problem
- handkerchief table — corner table.
- 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.
- hash house slinger — a person who serves in a cheap cafe
- 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
- heating degree-day — a degree-day below the standard temperature of 65°F or 19°C, used in estimating fuel consumption.
- 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
- helicopter station — a place where helicopters are kept in readiness for use
- herring bone weave — a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V , used in masonry, textiles, embroidery, etc.
- hexachlorobiphenyl — (organic compound) Either of forty-two isomers of the polychlorinated biphenyl containing six chlorine atoms.
- high-grade mineral — a mineral fulfilling certain conditions as regards purity or other physical properties
- highbush cranberry — a shrub, Viburnum trilobum, of northern North America, having broad clusters of white flowers and edible scarlet berries.
- historical present — the present tense used in narrating a past event as if happening at the time of narration.
- hit-and-run driver — sb: leaves accident scene
- hither and thither — to or toward this place: to come hither.
- hold a reservation — If a hotel holds a reservation, it keeps a room for someone, and does not give it to someone else.
- home entertainment — the aggregate of appliances, as stero systems, television, videocassette recorders, or computers, used for diversion in the home.
- honorable ordinary — any of the ordinaries believed to be among those that are oldest or that were the source of the other ordinaries, as the chief, pale, fess, bend, chevron, cross, and saltire.
- 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.
- 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
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyper-intellectual — appealing to or engaging the intellect: intellectual pursuits.
- hyperaldosteronism — aldosteronism.
- hyperbilirubinemia — an abnormally high level of bilirubin in the blood, manifested by jaundice, anorexia, and malaise, occurring in association with liver disease and certain hemolytic anemias.
- hyperconcentration — the act of concentrating; the state of being concentrated.
- hypernationalistic — a person devoted to nationalism.
- hyperproliferation — (biology) An abnormally high rate of proliferation of cells by rapid division.
- hypersensitization — Photography. to treat (a film or emulsion) so as to increase its speed.
- hypersexualisation — Alternative spelling of hypersexualization.