16-letter words containing a, d, i
- admitting office — an office in a hospital where administrative staff carry out the procedures necessary to admit a patient to the hospital
- adventitiousness — The degree to which a thing is adventitious.
- adventure racing — a contest in which teams compete in an expedition-length race which involves two or more sporting disciplines, often running, mountain biking, climbing, kayaking, and elements of navigation and orienteering
- adverbial phrase — a group of two or more words that function together as an adverb, as the phrase in a minute in I'll be with you in a minute.
- advice columnist — An advice columnist is a person who writes a column in a newspaper or magazine in which they reply to readers who have written to them for advice on their personal problems.
- advisory opinion — an opinion given by a court on a case that does not settle the case but sets out the court's view of how the law or the constitution would apply to that case
- advisory teacher — a teacher who visits schools to advise teachers on curriculum developments within a particular subject area
- aeolian deposits — sediments, such as loess, made up of windblown grains of sand or dust
- affaire de coeur — an affair of the heart; love affair
- african marigold — a tropical American plant, Tagetes erecta, cultivated for its yellow or orange flower heads and strongly scented foliage: family Asteraceae (composites)
- african wild dog — a mottled dog of Africa, Lycaon pictus
- african-canadian — a Canadian of African descent
- against all odds — If something happens against all odds, it happens or succeeds although it seemed impossible or very unlikely.
- against the head — from the opposing side's put-in to the scrum
- agustin iturbide — Agustín de [ah-goos-teen de] /ˌɑ gusˈtin dɛ/ (Show IPA), 1783–1824, Mexican soldier and revolutionary: as Agustín I, emperor of Mexico 1822–23.
- air conditioning — Air conditioning is a method of providing buildings and vehicles with cool dry air.
- air-raid shelter — a structure, often located underground, that is designed to protect people during an air raid
- air-raid warning — an alarm that sounds to warn people when an air raid is expected
- aleutian islands — a chain of over 150 volcanic islands, extending southwestwards from the Alaska Peninsula between the N Pacific and the Bering Sea
- alexander baring — Alexander, 1st Baron Ashburton, 1774–1848, British statesman.
- alexander island — island of Antarctica, just west of the base of the Antarctic Peninsula, in the British Antarctic Territory: c. 16,700 sq mi (43,253 sq km)
- alexander nevski — Saint. ?1220–63, Russian prince and military leader, who defeated the Swedes at the River Neva (1240) and the Teutonic knights at Lake Peipus (1242)
- alexandria senna — See under senna (def 2).
- algol 60 revised — (language) (Or "Revised ALGOL 60") A revision of Algol 60 which still lacked standard I/O.
- algol 68 revised — (language) A significant simplification of ALGOL 68.
- all in good time — in due course
- alligator lizard — any of several lizards of the genera Algaria and Gerrhonotus, of western North America, having shinglelike scales and a fold along each side that permits expansion.
- alloyed junction — a semiconductor junction used in some junction transistors and formed by alloying metal contacts, functioning as emitter and collector regions, to a wafer of semiconductor that acts as the base region
- alpha-adrenergic — of or having to do with an alpha receptor
- altitude chamber — a chamber for simulating the conditions of air pressure and temperature for a given altitude in order to test the behavior of people and equipment in such an environment.
- aluminum carbide — a yellow, crystalline solid, Al 4 C 3 , that reacts with water to form methane.
- ambidextrousness — The state or quality of being ambidextrous.
- ambulance driver — a person whose job is to drive an ambulance
- amebic dysentery — a form of dysentery caused by an amoeba (Entamoeba histolytica)
- amending formula — a specified process or procedure by which a constitution may be amended
- american mustard — a mild yellow mustard
- american tragedy — a novel (1925) by Theodore Dreiser.
- amidinohydrazone — any of a group of pesticides, originally developed as antimalarial and antitubercular drugs, that impair cell respiration in cockroaches, red ants, and other insects.
- amindivi islands — group of islands in the Arabian Sea, off the SW coast of India: the N part of Lakshadweep territory
- aminoacetic acid — glycine.
- aminocitric acid — an amino acid, C 6 H 9 O 7 N, that is a component of calf thymus ribonucleoprotein.
- ammunition depot — a place where ammunition is stored
- an end in itself — If you consider something to be an end in itself, you do it because it seems desirable and not because it is likely to lead to something else.
- anabolic steroid — Anabolic steroids are drugs which people, especially athletes, take to make their muscles bigger and to give them more strength.
- analog recording — a method of sound recording in which an input audio waveform is converted to an analogous waveform.
- andreas vesalius — Andreas [ahn-dre-ahs] /ɑnˈdrɛ ɑs/ (Show IPA), 1514–64, Flemish anatomist.
- andrei vishinsky — Andrei Yanuarievich [uhn-dryey yi-noo-ah-ryi-vyich] /ʌnˈdryeɪ yɪ nuˈɑ ryɪ vyɪtʃ/ (Show IPA), 1883–1954, Soviet statesman.
- andromeda strain — a hypothetical microorganism, as might be developed from biological research, that if released would uncontrollably kill living things on earth
- angular diameter — the angle that the apparent diameter of a celestial object subtends at the eye of the observer.
- animal husbandry — the science of breeding, rearing, and caring for farm animals