13-letter words containing e, i, c, o
- apperceptions — Plural form of apperception.
- appreciations — Plural form of appreciation.
- arachnephobia — Misspelling of arachnophobia.
- araeometrical — relating to araeometry
- arboriculture — the cultivation of trees or shrubs, esp for the production of timber
- archaelogical — Nonstandard spelling of archaeological.
- archaeologian — (archaic) An archaeologist.
- archaeologist — a specialist in archaeology, the scientific study of prehistoric peoples and their cultures by analysis of their artifacts, inscriptions, monuments, etc.
- archaeometric — relating to archaeometry
- archeological — of or relating to archaeology.
- archeologists — archaeology.
- archipelagoes — Plural form of archipelago.
- architectonic — denoting, relating to, or having architectural qualities
- aristocracies — Plural form of aristocracy.
- 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
- arthroscopies — Plural form of arthroscopy.
- arundinaceous — resembling a reed
- aryepiglottic — pertaining to or connecting the arytenoid cartilage and the epiglottis.
- 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)
- associateship — to connect or bring into relation, as thought, feeling, memory, etc.: Many people associate dark clouds with depression and gloom.
- associatively — in an associative or connective manner
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- athletic shoe — a shoe designed to be worn for sports, exercising, or recreational activity, as racquetball, jogging, or aerobic dancing.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atomic energy — nuclear energy
- atomic number — the number of protons in the nucleus of an atom of an element
- atomic theory — any theory in which matter is regarded as consisting of atoms, esp that proposed by John Dalton postulating that elements are composed of atoms that can combine in definite proportions to form compounds
- atomic volume — the atomic weight (relative atomic mass) of an element divided by its density
- atomic weapon — a weapon in which energy is provided by nuclear fission
- atomic weight — the weight of one atom of an element expressed in atomic mass units: it is the average weight of all the isotopes of the element
- atrociousness — The state of being atrocious.
- auction house — a commercial company that specializes in selling items at auction
- auctioneering — Present participle of auctioneer.
- audaciousness — Risky or daring behaviour.
- audience room — a room for holding formal interviews or hearings.
- audiocassette — a cassette containing audiotape
- authenticator — a person or thing that authenticates.
- auto-injector — An auto-injector is a hypodermic syringe that you can use to inject yourself with a liquid.
- autoeroticism — the arousal and use of one's own body as a sexual object, as through masturbation
- autoinfection — infection by a pathogenic agent already within the body or infection transferred from one part of the body to another
- automechanism — an automatic mechanical system or component, especially a device that operates automatically under predetermined conditions.
- autoschediasm — anything done with little forethought or preparation
- autoschediaze — to do or act with little forethought or preparation
- averruncation — the act of averting or turning away
- bachelor girl — a young unmarried woman, esp one who is self-supporting
- 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.