13-letter words containing a, c, i, e
- 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…"
- apathetically — having or showing little or no emotion: apathetic behavior.
- aperiodically — In an aperiodic way.
- apheliotropic — growing in a direction away from the sunlight
- apicoalveolar — articulated with the tip of the tongue in contact with or in approximation to the alveolar ridge.
- apicomplexans — Plural form of apicomplexan.
- apologeticism — An instance of the use of apologetics.
- apophlegmatic — having the ability to remove phlegm
- apoplectiform — of or resembling apoplexy or stroke.
- apostolic age — the earliest period of Christianity, lasting through the death of the last apostle.
- apostolic see — the see of the pope regarded as the successor to Saint Peter
- appendiculate — having appendicles
- apperceptions — Plural form of apperception.
- applicatively — In an applicative manner.
- appreciatable — (chiefly,esthetics) That can be appreciated or enjoyed.
- appreciations — Plural form of appreciation.
- apprenticeage — (obsolete) Apprenticeship.
- arab-american — a citizen or resident of the U.S. of Arab birth or descent.
- arabian camel — a domesticated camel, Camelus dromedarius, having one hump on its back and used as a beast of burden in the hot deserts of N Africa and SW Asia
- 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
- archaic smile — a conventional representation of the mouth characterized by slightly upturned corners of the lips, found especially on Greek sculpture produced prior to the 5th century b.c.
- archebacteria — Plural form of archebacterium.
- archeological — of or relating to archaeology.
- archeologists — archaeology.
- archie bunker — a poorly educated blue-collar worker, holding ultraconservative, racist, and male-chauvinist opinions.
- archimandrite — the head of a monastery or a group of monasteries
- archipelagoes — Plural form of archipelago.
- architectonic — denoting, relating to, or having architectural qualities
- architectural — Architectural means relating to the design and construction of buildings.
- architectured — Designed (according to a form of architecture, or as if by an architect).
- architectures — Plural form of architecture.
- arctic circle — The Arctic Circle is an imaginary line drawn around the northern part of the world at approximately 66° North.
- 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
- aristocracies — Plural form of aristocracy.
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arithmetician — a person skilled in arithmetic
- armistice day — the anniversary of the signing of the armistice that ended World War I, on Nov 11, 1918, now kept on Remembrance Sunday
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arthroscopies — Plural form of arthroscopy.
- artificialize — to render artificial
- arundinaceous — resembling a reed
- aryepiglottic — pertaining to or connecting the arytenoid cartilage and the epiglottis.