13-letter words containing a, c, n, o
- antimetabolic — inhibiting metabolism
- antimicrobial — capable of destroying or inhibiting the growth of disease-causing microbes
- antiobscenity — opposed to or working to combat obscenity
- antiochus iii — known as Antiochus the Great. 242–187 bc, king of Syria (223–187), who greatly extended the Seleucid empire but was forced (190) to surrender most of Asia Minor to the Romans
- antioncogenes — Plural form of antioncogene.
- antipolitical — opposed to politics or political principles
- antipsychotic — preventing or treating psychosis
- antirecession — acting against recession
- antirejection — acting to prevent the rejection of a transplanted organ
- 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.
- apicomplexans — Plural form of apicomplexan.
- apperceptions — Plural form of apperception.
- apple-knocker — Northern U.S. a rustic.
- applicational — Of or pertaining to an application.
- appreciations — Plural form of appreciation.
- 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.
- arc cotangent — the angle, measured in radians, that has a cotangent equal to a given number. Symbol: cot −1. Abbreviation: arc cot.
- archaeobotany — the analysis and interpretation of plant remains found at archaeological sites
- archaeologian — (archaic) An archaeologist.
- archidiaconal — of or relating to an archdeacon or his office
- architectonic — denoting, relating to, or having architectural qualities
- aridification — the process by which a humid region becomes increasingly dry, as by climatic change or human interference with the ecology.
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arthroconidia — Plural form of arthroconidium.
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- ascension day — the 40th day after Easter, when the Ascension of Christ into heaven is celebrated
- ascensiontide — the ten days from Ascension Day to the day before Whit Sunday
- ascoli piceno — a town in E central Italy, in the Marches: capital of the Roman province of Picenum; site of the massacre of all its Roman citizens in the Social War in 90 bc. Pop: 51 375 (2001)
- ashcan school — a group (formed c. 1908) of U.S. painters who promoted realistic painting based on the direct observation of everyday, esp. urban, events
- asset account — An asset account is an account that records the assets owned by a company.
- associational — relating to association or alliance or an association, alliance or affiliation
- astrodynamics — the study of the motion of natural and artificial bodies in space
- astronautical — of or relating to astronautics or astronauts.
- at a discount — below the regular price
- at one's back — behind, esp in support or pursuit