13-letter words containing n, e, c, s, a
- anna christie — a play (1921) by Eugene O'Neill.
- announcements — Plural form of announcement.
- annular space — An annular space is a ring-shaped space outside the drillpipe, through which mud and cuttings are removed.
- ante-christum — before Christ. Abbreviation: A.C.
- anthelmintics — Plural form of anthelmintic.
- anticlockwise — If something is moving anticlockwise, it is moving in the opposite direction to the direction in which the hands of a clock move.
- anticorrosive — preventing corrosion
- antidesiccant — a substance applied to plants to prevent moisture loss during transplantation
- antidiuretics — Plural form of antidiuretic.
- antielectrons — Plural form of antielectron.
- antimechanist — opposed to mechanistic philosophy
- antiobscenity — opposed to or working to combat obscenity
- antioncogenes — Plural form of antioncogene.
- antiparticles — Plural form of antiparticle.
- antipesticide — opposed to the use of pesticides
- antirecession — acting against recession
- antiresonance — a phenomenon in an electric, acoustic, or other such system in which the impedance is tending to infinity.
- antiselection — adverse selection.
- antisepticise — to render antiseptic
- antisepticism — the treatment of sepsis using antiseptics
- antisepticize — to treat with an antiseptic
- antisymmetric — (of a relation) never holding between a pair of arguments x and y when it holds between y and x except when x = y, as "…is no younger than…"
- apicomplexans — Plural form of apicomplexan.
- apperceptions — Plural form of apperception.
- appreciations — Plural form of appreciation.
- appurtenances — accessories or equipment
- arcus senilis — an opaque circle around the cornea of the eye, often seen in elderly people
- arias sanchez — Oscar. born 1940, Costa Rican statesman; president (1986–90, 2006–2010); Nobel peace prize 1987
- 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
- 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
- ascertainable — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- ascertainably — In a way that can be ascertained.
- ascertainment — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- aschaffenburg — a city in Germany, on the River Main in Bavaria: seat of the Imperial Diet (1447); ceded to Bavaria in 1814. Pop: 68 607 (2003 est)
- aschelminthes — a major grouping (formerly a phylum) of small-to-microscopic pseudocoelomate organisms, as the rotifers, nematodes, and gastrotriches, all of which are now classified as separate phyla.
- 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)
- asset account — An asset account is an account that records the assets owned by a company.
- at one's back — behind, esp in support or pursuit
- atrociousness — The state of being atrocious.
- auction house — a commercial company that specializes in selling items at auction
- audaciousness — Risky or daring behaviour.
- authenticates — Third-person singular simple present indicative form of authenticate.
- automechanism — an automatic mechanical system or component, especially a device that operates automatically under predetermined conditions.
- baby snatcher — a person who steals a baby from its pram
- back emission — the secondary emission of electrons from an anode
- backbone site — A key Usenet, electronic mail and/or Internet site; one that processes a large amount of third-party traffic, especially if it is the home site of any of the regional coordinators for the Usenet maps. Notable backbone sites as of early 1993 include uunet and the mail machines at Rutgers University, UC Berkeley, DEC's Western Research Laboratories, Ohio State University and the University of Texas. Compare rib site, leaf site.
- backgrounders — Plural form of backgrounder.