15-letter words containing i, a, d
- anti-depressant — An anti-depressant is a drug which is used to treat people who are suffering from depression.
- anti-federalism — U.S. History. a member or supporter of the Antifederal party.
- anti-productive — having the power of producing; generative; creative: a productive effort.
- anti-radicalism — the holding or following of radical or extreme views or principles.
- antiaphrodisiac — something that represses sexual desire
- anticancer drug — a drug used to treat cancer
- anticardiolipin — (medicine, immunology) Directed against cardiolipin.
- anticoincidence — of or relating to an electronic circuit that produces an output pulse if one but not both of its input terminals receives a pulse within a specified interval of time
- antidepressants — of or relating to a substance that is used in the treatment of mood disorders, as characterized by various manic or depressive affects.
- antidevelopment — (of a group) opposed to development
- antieducational — opposing the provision of knowledge
- antifederalists — Plural form of antifederalist.
- antitraditional — opposed to or acting with disregard for tradition
- aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
- apollo asteroid — one of a number of asteroids whose orbits cross that of the earth.
- appendicularian — of or relating to a family of molluscs (Appendicularia) characterized by their long tail appendages
- apple-pie order — perfect order or condition
- arc de triomphe — the triumphal arch in Paris begun by Napoleon I to commemorate his victories of 1805–6 and completed in 1836
- archibald prize — an annual prize awarded by the Trustees of the Art Gallery of New South Wales since 1921, for outstanding contributions to art, letters, science, and politics
- arrondissements — Plural form of arrondissement.
- ascending colon — the first portion of the colon, beginning at the cecum in the lower right abdominal cavity and continuing upward along the right posterior abdominal wall to approximately the lower ribs.
- ascending scale — a scale that is rising in pitch
- asclepiadaceous — of, relating to, or belonging to the Asclepiadaceae, a family of mostly tropical and subtropical flowering plants, including the milkweed and swallowwort, having pollen in the form of a waxy mass (pollinium): now usually regarded as a subfamily of the Apocynaceae
- ascribed status — the social position assigned to a person on the basis of kinship, ethnic group, sex, etc.
- assistant judge — a person who assists a judge in their work or who is not yet fully qualified as a judge
- assisted living — Assisted living is a type of housing specially designed for people who need help in their everyday lives, but who do not need specialist nursing care. In assisted living facilities, residents live in independent rooms or apartments, but receive help with day-to-day activities, for example bathing, dressing, preparing meals, and taking their medicines.
- astrodynamicist — a person who studies astrodynamics
- at sb's bidding — If you do something at someone's bidding, you do it because they have asked you to do it.
- atlantic ridley — ridley (def 1).
- atlantic-ridley — ridley (def 1).
- attitude survey — a survey of the opinions held by a particular group of people
- audience appeal — the quality of being attractive to an audience
- audience rating — a figure based on statistical sampling indicating what proportion of the total listening and viewing audience tune in to a specific programme or network
- audio equipment — electrical devices used to play or record sound
- audio frequency — a frequency in the range 20 hertz to 20 000 hertz. A sound wave of this frequency would be audible to the human ear
- audio recording — an electronic recording of sound
- auditor general — (in Canada) a federal official responsible for auditing government departments and making an annual report
- audubon society — a North American organization devoted to the conservancy of birds
- auf wiedersehen — goodbye, until we see each other again
- augmented sixth — an interval greater than a major sixth by a chromatic half step.
- autodestructive — likely to cause one's own destruction
- autodidacticism — any self-directed learning or self-education
- automatic drive — an automotive transmission requiring either very little or no manual shifting of gears.
- autoradiographs — Plural form of autoradiograph.
- autoradiography — the technique or process of making autoradiographs.
- autoschediastic — offhand, with little forethought or preparation
- autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
- azobisformamide — (chemistry) azodicarbonamide.
- backseat driver — If you refer to a passenger in a car as a backseat driver, they annoy you because they constantly give you advice about how to drive.
- baconian method — induction (def 4a).