18-letter words containing r, h, i, n
- determinate growth — growth of a plant stem that is terminated early by the formation of a bud
- devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
- dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
- dimethyltryptamine — a hallucinogenic drug, C 12 H 16 N 2 , with an action of short duration. Abbreviation: DMT.
- diphtheria vaccine — a vaccine used to produce immunity against diphtheria
- discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
- disenfranchisement — to disfranchise.
- divergent thinking — thinking in an unusual and unstereotyped way, e.g. to generate several possible solutions to a problem
- division algorithm — the theorem that an integer can be written as the sum of the product of two integers, one a given positive integer, added to a positive integer smaller than the given positive integer. Compare Euclidean algorithm.
- drinking chocolate — sweetened cocoa powder
- drop in the bucket — a deep, cylindrical vessel, usually of metal, plastic, or wood, with a flat bottom and a semicircular bail, for collecting, carrying, or holding water, sand, fruit, etc.; pail.
- dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
- duty-free shopping — the making of duty-free purchases
- earnings per share — the net income of a corporation divided by the total number of shares of its common stock outstanding at a given time. Abbreviation: EPS.
- eastern hemisphere — the eastern part of the terrestrial globe, including Asia, Africa, Australia, and Europe.
- economic geography — a branch of geography that deals with the relation of physical and economic conditions to the production and utilization of raw materials and their manufacture into finished products.
- eggshell porcelain — a type of very thin translucent porcelain originally made in China
- eighty-twenty rule — (programming) The program-design version of the law of diminishing returns. The 80/20 rule says that roughly 80% of the problem can be solved with 20% of the effort that it would take to solve the whole problem. For example, parsing e-mail addresses in "From:" lines in e-mail messages is notoriously difficult if you follow the RFC 2822 specification. However, about 60% of actual "From:" lines are in the format "From: Their Name <[email protected]>", with a far more constrained idea of what can be in "user" or "host" than in RFC 2822. Another 25% just add double-quotes around "Their Name". Matching just those two patterns would thus cover 85% of "From:" lines, with a tiny portion of the code required to fully implement RFC2822. (Adding support for "From: [email protected]" and "From: [email protected] (Their Name) " brings coverage to almost 100%, leaving only really baroque things that RFC-2822 permits, like "From: Pete(A wonderful \) chap)
- elizabeth petrovna — 1709-62; empress of Russia (1741-62): daughter of Peter I
- equine herpesvirus — a viral disease of horses that may cause respiratory signs, abortion, neonatal death, and paresis. A vaccine is available against this disease
- establishmentarian — Adhering to, advocating, or relating to the principle of an established church.
- exclusive brethren — one of the two main divisions of the Plymouth Brethren, which, in contrast to the Open Brethren, restricts its members' contacts with those outside the sect
- executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
- farmer in the dell — a game, accompanied by a song with several verses, in which one person, designated as the farmer, occupies the center of a circle of persons and is joined in the circle by other players designated as wife, child, nurse, cat, rat, and cheese, these then leaving the circle in order except for the one designated as cheese, who is left standing alone in the circle at the end.
- feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
- ferdinand schiller — Ferdinand Canning Scott [kan-ing] /ˈkæn ɪŋ/ (Show IPA), 1864–1937, English philosopher in the U.S.
- fifth monarchy men — (during the Commonwealth in the 17th century) a militant sect of Puritans who identified the fifth monarchy with the millennial reign of Christ and who believed they should help to inaugurate that reign by force.
- filchner ice shelf — an ice barrier in Antarctica, in the SE Weddell Sea, bordered on the W by Berkner Island.
- first things first — You say 'first things first' when you are talking about something that should be done or dealt with before anything else because it is the most important.
- fischer von erlach — Johann Bernhard [yaw-hahn bern-hahrt] /ˈyɔ hɑn ˈbɛrn hɑrt/ (Show IPA), 1656–1723, Austrian architect.
- five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
- for the time being — the system of those sequential relations that any event has to any other, as past, present, or future; indefinite and continuous duration regarded as that in which events succeed one another.
- forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
- free-range chicken — a chicken kept in natural nonintensive conditions
- french west africa — a former French federation in W Africa, including Dahomey (now Benin), French Guinea, French Sudan (now Mali), Ivory Coast, Mauritania, Niger, Senegal, and Upper Volta (now Burkina Fasso).
- french west indies — islands in the West Indies that belong to France, including two overseas departments (Martinique & Guadeloupe) & several former dependencies of Guadeloupe
- furnishing fabrics — fabrics used to make and cover furniture
- general anesthesia — induced unconsciousness
- genetic algorithms — genetic algorithm
- get one's irish up — of, relating to, or characteristic of Ireland, its inhabitants, or their language.
- glomerulonephritis — a kidney disease affecting the capillaries of the glomeruli, characterized by albuminuria, edema, and hypertension.
- 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.
- government housing — housing owned and managed by the federal or state government, which is rented out to tenants, esp as a form of affordable housing
- 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.
- greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
- 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.