13-letter words containing o, n, a, i
- antipollution — (of measures, policies, etc) designed to combat pollution and its causes
- antiprotozoal — (medicine) That inhibits or destroys protozoa.
- antipsychotic — preventing or treating psychosis
- antiradiation — Countering radiation.
- antirecession — acting against recession
- antireformers — Plural form of antireformer.
- antirejection — acting to prevent the rejection of a transplanted organ
- antireligious — opposed to religious ideas, beliefs, and organizations
- antiresonance — a phenomenon in an electric, acoustic, or other such system in which the impedance is tending to infinity.
- antiscorbutic — preventing or curing scurvy
- antiselection — adverse selection.
- antisocialism — the quality of being antisocial
- antisocialist — a person opposed to socialism
- antisociality — the quality of being antisocial
- antispasmodic — preventing or arresting spasms, esp in smooth muscle
- antisudorific — an antiperspirant.
- antiterrorism — opposed to or acting against terrorism; counterterrorist
- antiterrorist — relating to measures, policies, or organizations designed to combat terrorist activity
- antonine wall — a Roman frontier defence work across S Scotland, extending between the River Clyde and the Firth of Forth. It was built in 142 ad on the orders of Antoninus Pius (86–161 ad), emperor of Rome (138–161)
- anything goes — If people say 'anything goes', they mean that anything people say or do is considered acceptable, and usually they mean that they do not approve of this.
- aphanipterous — of or relating to the wingless insects of the order Aphaniptera
- apicomplexans — Plural form of apicomplexan.
- apotheosizing — Present participle of apotheosize.
- apperceptions — Plural form of apperception.
- appersonation — the unconscious assumption of the personality characteristics of another, usually well known, person.
- applicational — Of or pertaining to an application.
- apportionable — to distribute or allocate proportionally; divide and assign according to some rule of proportional distribution: to apportion expenses among the three men.
- apportionment — the act of apportioning
- appreciations — Plural form of appreciation.
- apprehensions — Plural form of apprehension.
- appropinquate — to approach
- appropinquity — nearness
- appropriating — Present participle of appropriate.
- appropriation — An appropriation is an amount of money that a government or organization reserves for a particular purpose.
- approximating — Present participle of approximate.
- approximation — An approximation is a fact, object, or description which is similar to something else, but which is not exactly the same.
- apron strings — If you say that someone is tied to another person's apron strings, you mean that they are controlled or influenced too much by the other person.
- aqua ammoniae — ammonia (def 2).
- arabian horse — one of a breed of horses, raised originally in Arabia and adjacent countries, noted for intelligence, grace, and speed.
- arabicization — the gradual change of a culture into one that incorporates Arab culture and/or speaks Arabic
- arachnephobia — Misspelling of arachnophobia.
- arachniphobia — Alternative form of arachnophobia.
- arachnivorous — Spider-eating.
- arachnoiditis — an inflammation of the arachnoid membrane
- arachnophobia — an abnormal fear of spiders
- arachnophobic — an abnormal or pathological fear of spiders.
- arbitrational — relating to, involving, or resulting from arbitration
- archaeologian — (archaic) An archaeologist.
- archidiaconal — of or relating to an archdeacon or his office
- architectonic — denoting, relating to, or having architectural qualities