13-letter words containing i, o, a
- ammonia clock — an atomic clock based on the frequency of inversion of the ammonia molecule
- ammonia water — ammonia (def 2).
- ammonium salt — any salt containing the NH 4 + ion, formed by the neutralization of ammonium hydroxide by an acid.
- amniocenteses — Plural form of amniocentesis.
- amniocentesis — If a pregnant woman has an amniocentesis, fluid is removed from her womb in order to check that her unborn baby is not affected by certain genetic disorders.
- amor asteroid — one of a small group of asteroids whose orbits approach but do not cross that of the earth: named after the first such asteroid discovered (1932).
- amphibologies — Plural form of amphibology.
- amphictyonies — Plural form of amphictyony.
- amphidiploidy — (of an organism or cell) the condition of being amphidiploid ie having a diploid set of chromosomes from each parent
- amphiprostyle — (esp of a classical temple) having a set of columns at both ends but not at the sides
- amphistomatal — (of a leaf) having stomata on both surfaces
- amphitrichous — having a single flagellum at each end.
- amphitryon 38 — a play (1938) by Jean Giraudoux.
- amphotericins — Plural form of amphotericin.
- amplification — the act or result of amplifying
- amplificatory — of the nature of enlargement or extension, as of a statement, narrative, etc.
- anachronistic — You say that something is anachronistic when you think that it is out of date or old-fashioned.
- anaerobically — (of an organism or tissue) living in the absence of air or free oxygen.
- analogization — A process or act of analogizing.
- anaphorically — referring back to or substituting for a preceding word or group of words: anaphoric reference.
- anaphrodisiac — tending to lessen sexual desire
- anaphylactoid — Of, pertaining to, or resembling anaphylaxis.
- anatomization — A process or act of anatomizing.
- andersonville — town in SW central Ga.: site of a Confederate prison in the Civil War
- andrei markov — (person) 1856-1922. The Russian mathematician, after who Markov chains were named.
- androcentrism — centered on, emphasizing, or dominated by males or masculine interests: an androcentric society; an androcentric religion.
- androdioecism — the state of being androdioecious
- anecdotically — in an anecdotical manner
- anesthetic to — incapable of feeling or responding to
- anfractuosity — the condition or quality of being anfractuous
- angiokeratoma — a skin disease characterized by clusters of dilated blood vessels and by thickened skin, forming warty growths, especially on the scrotum, fingers, and toes.
- angioplasties — Plural form of angioplasty.
- angiosarcomas — Plural form of angiosarcoma.
- angiospermous — of or relating to an angiosperm; having enclosed seeds.
- angiotensin i — any of three oligopeptides occurring in plasma, an inactive form (angiotensin I) and two varieties (angiotensin II and angiotensin III) that elevate blood pressure and stimulate the adrenal cortex to secrete aldosterone.
- angle of view — the angle that corresponds to the field of view provided by a lens
- anglicisation — The process by which something or someone (usually a word) is made more English. Usually applied to language or culture.
- anglicization — (US) alternative spelling of anglicisation.
- angora rabbit — a breed of rabbit with long usually white silky hair
- Ångstrom unit — a unit of length equal to 10 −10 metre, used principally to express the wavelengths of electromagnetic radiations. It is equivalent to 0.1 nanometre
- anharmonicity — (mechanics) Of or pertaining to the deviation of a system from harmonicity (being a harmonic oscillator).
- animadversion — criticism or censure
- animalization — to excite the animal passions of; brutalize; sensualize.
- anise camphor — anethole.
- anisometropia — an imbalance in the power of the two eyes to refract light
- anisometropic — relating to anisometropia
- anisophyllous — having leaves of different shapes or sizes.
- ankyloglossia — tongue-tie.
- anna ivanovna — 1693–1740, empress of Russia 1730–40.
- annexationism — the theory or practice of taking over another country's territory, especially by force.