12-letter words containing h, e, a, l
- crystal meth — crystal methamphetamine, a concentrated and highly potent form of methamphetamine with dangerous side effects
- curly-haired — having hair that forms curls
- curule chair — an upholstered folding seat with curved legs used by the highest civil officials of ancient Rome
- cyberathlete — a professional player of computer games
- cycloheptane — (organic compound) An alicyclic hydrocarbon, C7H14; a volatile inflammable liquid.
- cyclohexanol — (organic compound) The alicyclic alcohol derived from cyclohexane by replacement of a hydrogen atom with a hydroxyl group.
- cymbocephaly — scaphocephaly.
- cytochemical — the branch of cell biology dealing with the detection of cell constituents by means of biochemical analysis and visualization techniques.
- czechoslovak — Czechoslovak means belonging or relating to the former state of Czechoslovakia.
- dall's sheep — a white-haired wild sheep, Ovis dalli, of mountainous regions of northwestern North America, having curved horns.
- damselfishes — Plural form of damselfish.
- daniel shays — Daniel, 1747–1825, American Revolutionary War soldier: leader of a popular insurrection (Shays' Rebellion) in Massachusetts 1786–87.
- dasher block — a block at the end of a yard or gaff for supporting a signal or ensign halyard.
- data channel — (communications) A channel (on a BRI or PRI line) used to carry control information, to set up connections on the associated bearer channels. The name wasn't too bad back when users were sending voice (not data) over the bearer channels, but in 1997 it's quite a misnomer.
- daughterless — Without a daughter.
- daughterlike — Resembling a daughter.
- daughterling — a small daughter
- de havilland — Sir Geoffrey. 1882–1965, British aircraft designer. He produced many military aircraft and the first jet airliners
- dealcoholize — to remove some or all of the alcohol from (a drink).
- death rattle — If you say that one thing is the death rattle of another, you mean that the first thing is a sign that very soon the second thing will come to an end.
- death spiral — a period of continuous deterioration that leads ultimately to catastrophic failure or destruction
- death valley — a desert valley in E California and W Nevada: the lowest, hottest, and driest area of the US. Lowest point: 86 m (282 ft) below sea level. Area: about 3885 sq km (1500 sq miles)
- dechlorinate — to remove chlorine from (a substance)
- decipherable — to make out the meaning of (poor or partially obliterated writing, etc.): to decipher a hastily scribbled note.
- delray beach — a city in SE Florida.
- delta rhythm — the normal electrical activity of the cerebral cortex during deep sleep, occurring at a frequency of 1 to 4 hertz and detectable with an electroencephalograph
- dephlegmator — an apparatus used for dephlegmation
- diencephalic — Of or pertaining to the diencephalon.
- diencephalon — the posterior section of the forebrain.
- diethylamide — (organic compound) The derivative of a compound formed by adding an amide group with two ethyl substituents, N(C2H5)2.
- diethylamine — (organic compound) The secondary amine (CH3CH2)2NH.
- dilettantish — a person who takes up an art, activity, or subject merely for amusement, especially in a desultory or superficial way; dabbler.
- diminishable — That may be diminished.
- dip the flag — to salute by lowering a flag briefly
- disestablish — to deprive of the character of being established; cancel; abolish.
- dishonorable — showing lack of honor or integrity; ignoble; base; disgraceful; shameful: Cheating is dishonorable.
- dispatchable — Capable of being dispatched.
- ditheistical — of or relating to ditheism, ditheistic
- ditheletical — relating to ditheletism, the doctrine that Christ had two wills
- dodecahedral — Having twelve plane surfaces.
- double sharp — a symbol (× or ) that raises by two semitones the pitch of the following note.
- doubleheader — Sports. two games, as of baseball, between the same teams on the same day in immediate succession. two games, as of basketball, between two different pairs of teams on the same day in immediate succession.
- douglas-home — Alexander Frederick (Baron Home of the Hirsel) 1903–1995, British statesman and politician: prime minister 1963–64.
- down-at-heel — of a shabby, run-down appearance; seedy: He is rapidly becoming a down-at-heel drifter and a drunk.
- duplex chain — a roller chain having two sets of rollers linked together, used for heavy-duty applications
- earl marshal — an officer of the English peerage who presides over the College of Heralds and organizes royal processions and other important ceremonies
- early blight — a disease of plants characterized by leaf spotting, defoliation, and stunted growth, caused by any of several fungi, as Alternaria solani or Cercospora apii.
- early hebrew — noting or pertaining to the alphabetical script used for the writing of Hebrew mainly from the 11th to the 6th centuries b.c.
- earth almond — chufa.
- earth closet — a type of lavatory in which earth is used to cover excreta