12-letter words containing h, a, i, d
- coach driver — a person who drives a coach
- coachbuilder — (historical) A builder of horse-drawn coaches.
- code-sharing — a commercial agreement between two airlines that allows passengers to use a ticket from one airline to travel on another
- conchoidally — In a conchoidal manner.
- curly-haired — having hair that forms curls
- cyanohydrins — Plural form of cyanohydrin.
- 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.
- daphnephoria — an ancient Greek festival in honor of Apollo.
- daughterlike — Resembling a daughter.
- daughterling — a small daughter
- day hospital — part of a hospital that offers therapeutic services, where patients usually attend all day but go home or to a hospital ward at night
- de havilland — Sir Geoffrey. 1882–1965, British aircraft designer. He produced many military aircraft and the first jet airliners
- de-emphasize — to remove emphasis from
- dead freight — an amount owed by a contractor who charters space in a ship but fails to occupy it fully.
- dealcoholize — to remove some or all of the alcohol from (a drink).
- death duties — Death duties were a tax which had to be paid on the money and property of someone who had died. This tax is now called inheritance tax.
- death notice — a public announcement, e.g. in a newspaper, that someone has died
- death spiral — a period of continuous deterioration that leads ultimately to catastrophic failure or destruction
- debaucheries — Plural form of debauchery.
- 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.
- deemphasized — Simple past tense and past participle of deemphasize.
- deemphasizes — Third-person singular simple present indicative form of deemphasize.
- dehumanising — Present participle of dehumanise.
- dehumanizing — denying or depriving of dignity
- demographics — data resulting from the science of demography; population statistics
- demographies — the science of vital and social statistics, as of the births, deaths, diseases, marriages, etc., of populations.
- dermographia — dermatographia.
- dermographic — dermatographia.
- diamond head — promontory in SE Oahu, Hawaii, near Honolulu, consisting of the rim of an extinct volcanic crater
- diaphanously — In a diaphanous manner or to a diaphanous extent.
- diarthrodial — a form of articulation that permits maximal motion, as the knee joint.
- diastrophism — the process of movement and deformation of the earth's crust that gives rise to large-scale features such as continents, ocean basins, and mountains
- diathermancy — the property of transmitting infrared radiation
- diazomethane — a yellow odourless explosive gas, used as a methylating agent. Formula: CH2:N:N
- dibranchiate — of, relating to, or belonging to the Dibranchiata, a group or former order of cephalopod molluscs, including the octopuses, squids, and cuttlefish, having two gills
- dichotically — in a dichotic manner
- dichromatism — the quality or condition of being dichromatic
- dictatorship — Dictatorship is government by a dictator.
- 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.
- ding an sich — thing-in-itself.
- dining chair — high-backed chair used at dinner table
- dip the flag — to salute by lowering a flag briefly
- diphosphates — a pyrophosphate.