20-letter words containing h, a, d, n
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- cut the gordian knot — to find a quick, bold solution for a perplexing problem
- cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
- daylight saving time — Daylight Saving Time is a period of time in the summer when the clocks are set one hour forward, so that people can have extra light in the evening.
- daylight-saving time — the civil time observed when daylight saving is adopted in a country or community.
- death of ivan ilyich — a short novel (1884) by Leo Tolstoy.
- decahydronaphthalene — a colorless, aromatic liquid, C 10 H 18 , insoluble in water and soluble in alcohol and ether: used as a solvent for oils, fats, etc., in cleaning fluids, lubricants, etc.
- deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
- department of health — government ministry for health matters
- diabetic retinopathy — a disorder of the blood vessels of the retina occurring as a complication of poorly controlled diabetes mellitus and often leading to blindness.
- diammonium phosphate — a white, crystalline, water-soluble compound, (NH 4) 2 HPO 4 , used as fertilizer, in fire extinguishers, etc.
- diamond in the rough — a diamond in its natural state
- differential housing — the casing that houses the differential of a motor vehicle
- dimethylanthranilate — a colorless or pale-yellow liquid, C 9 H 11 NO 2 , having a grape odor: used chiefly in perfumes, flavorings, and drugs.
- diophantine analysis — any of several methods for finding integral solutions for equations with more than one variable whose coefficients are integers.
- diophantine equation — an equation involving more than one variable in which the coefficients of the variables are integers and for which integral solutions are sought.
- disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
- discounted cash flow — a technique for appraising an investment that takes into account the different values of future returns according to when they will be received
- dispersion hardening — the strengthening of an alloy as a result of the presence of fine particles in the lattice
- distress merchandise — goods sold below the prevailing price in order to raise cash quickly or to meet some other financial emergency.
- distribution channel — trade: retailer
- docosahexaenoic acid — DHA.
- domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
- drive a hard bargain — be tough negotiator
- early modern english — the English language represented in printed documents of the period starting with Caxton (1476) and ending with Dryden (1700).
- eat out of sb's hand — If you have someone eating out of your hand, they are completely under your control.
- edward the confessor — Saint, 1002?–66, English king 1042–66: founder of Westminster Abbey.
- electrohydrodynamics — (physics) the study of the dynamics of electrically conducting fluid.
- epidural anaesthesia — numbing injection in the spine
- fight tooth and nail — fight fiercely
- fold-and-thrust belt — a linear or arcuate region of the earth's surface that has been subjected to severe folding and thrust faulting
- force someone's hand — to force someone to act
- fourteenth amendment — an amendment to the U.S. Constitution, ratified in 1868, defining national citizenship and forbidding the states to restrict the basic rights of citizens or other persons.
- friends of the earth — an organization of environmentalists and conservationists whose aim is to promote the sustainable use of the earth's resources
- fundamental research — research carried out to deepen understanding of the fundamental or basic principles of something
- general headquarters — the headquarters of the commanding officer of a large military force. Abbreviation: GHQ, G.H.Q.
- get ahold of oneself — If you get ahold of yourself, you force yourself to become calm and sensible after a shock or in a difficult situation.
- go to someone's head — to confuse, excite, or intoxicate someone
- goldenhar's syndrome — a congenital disorder in which one side of the face is malformed, often with an enlargement of one side of the mouth. There may also be hearing loss, curvature of the spine, and mild retardation
- grand right and left — a figure called in square dancing in which partners face each other, forming a small circle, and then advance around the circle by extending alternating right and left hands to pull past each new person until they reach their partners again.
- grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- great northern diver — a large northern bird, Gavia immer, with a black-and-white chequered back and a black head and neck in summer: family Gaviidae (divers)
- guarded horn clauses — (language) (GHC) A parallel dialect of Prolog by K. Ueda in which each clause has a guard. GHC is similar to Parlog. When several clauses match a goal, their guards are evaluated in parallel and the first clause whose guard is found to be true is used and others are rejected. It uses committed-choice nondeterminism. See also FGHC, KL1.
- happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- hardware handshaking — (communications) A technique for regulating the flow of data across an interface by means of signals carried on separate wires. A common example is the RTS (Request to Send) and CTS (Clear to Send) signals on an EIA-232 serial line. The alternative, software handshaking, uses two special characters inserted into the data stream to carry the same information.
- have had one's chips — to be defeated, condemned to die, killed, etc
- hawaii-standard-time — Alaska-Hawaii time.
- hazard warning lamps — Hazard warning lamps are flashing lamps on each corner of a vehicle that are used to show the position of the vehicle if there has been a breakdown or an accident.
- heat of condensation — the heat liberated by a unit mass of gas at its boiling point as it condenses to a liquid: equal to the heat of vaporization.