17-letter words containing c, o, a
- at one's own pace — If you do something at your own pace, you do it at a speed that is comfortable for you.
- at the service of — To be at the service of a person or organization means to be available to help or be used by that person or organization.
- attachment theory — a set of concepts that explain the emergence of an emotional bond between an infant and primary caregiver and the way in which this bond affects the child’s behavioral and emotional development into adulthood. See also attachment (def 3a).
- attendance record — the record of how often a person has attended an institution such as a school
- attorneys-in-fact — a person authorized by power of attorney to act on the authorizer's behalf outside a court of law.
- attraction sphere — centrosphere (sense 1)
- audio description — a facility provided for visually impaired people in which a film, television programme, or play is described through audio technology
- aurea mediocritas — the golden mean.
- australopithecine — any of various extinct apelike primates of the genus Australopithecus and related genera, remains of which have been discovered in southern and E Africa. Some species are estimated to be over 4.5 million years old
- authority control — the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.
- autocatalytically — In an autocatalytic manner.
- autocorrelational — Of or pertaining to autocorrelation.
- automatic vending — selling goods by vending machines
- automatic writing — writing performed without apparent intent or conscious control, especially to achieve spontaneity or uncensored expression.
- aviation medicine — the branch of medicine concerned with the effects on man of flight in the earth's atmosphere
- avogadro constant — the number of atoms or molecules in a mole of a substance
- axis of abscissas — x-axis (def 1).
- axis-of-abscissas — x-axis (def 1).
- bachelor's button — any of several plants of a genus (Centaurea) of the composite family, that have scaly, vase-shaped bracts below the white, pink, or blue flowers; esp., the cornflower and knapweed
- bachelor's degree — A bachelor's degree is a first degree awarded by universities.
- bachelor's-button — any of various plants with round flower heads, especially the cornflower.
- back on the rails — If something is back on the rails, it is beginning to be successful again after a period when it almost failed.
- background report — a report on someone or something that sheds light on their background, esp a report on the background of a person convicted of a crime before they are sentenced by a judge
- bacon's rebellion — an unsuccessful uprising by frontiersmen in Virginia in 1676, led by Nathaniel Bacon against the colonial government in Jamestown.
- bacteriologically — In a bacteriological manner; with respect to bacteriology.
- bacteriorhodopsin — a purple protein containing retinal and found in the plasma membrane of certain bacteria (genus Halobacterium): it directly supplies electrochemical energy from sunlight
- baggage checkroom — a left luggage office; a place at, for example, a railway station where baggage can be left
- bahia de cochinos — Spanish name of Bay of Pigs.
- balance of nature — the stable state in which natural communities of animals and plants exist, maintained by adaptation, competition, and other interactions between members of the communit ies and their nonliving environment
- balance of terror — military deterrence based on the possession of weapons of mass destruction by opponents in a conflict
- balance the books — do accounting
- bald-faced hornet — any large, stinging paper wasp of the family Vespidae, as Vespa crabro (giant hornet) introduced into the U.S. from Europe, or Vespula maculata (bald-faced hornet or white-faced hornet) of North America.
- baltimore clipper — a small, fast American sailing vessel of the early 19th century, having a sharp hull form and two masts with a pronounced rake and carrying a brig or schooner rig.
- barchester towers — a novel (1857) by Anthony Trollope.
- barred woodpecker — a climbing bird, Picoides minor, of the family Picidae
- basic proposition — protocol (def 6).
- beardmore glacier — one of the largest glaciers, in central Antarctica. About 125 miles (200 km) long.
- beat to the punch — to be quicker than (another) in doing something, as in striking a blow
- behind one's back — without one's knowledge; secretly or deceitfully
- benjamin-constant — Henri Benjamin [ahn-ree ban-zha-man] /ɑ̃ˈri bɛ̃ ʒaˈmɛ̃/ (Show IPA), (Benjamin Constant) 1767–1830, French statesman and author, born in Switzerland.
- betagalactosidase — any of a family of enzymes capable of liberating galactose from carbohydrates.
- beyond comparison — outstanding, without equal
- binet-simon scale — a test comprising questions and tasks, used to determine the mental age of subjects, usually children
- binocular rivalry — the phenomenon whereby one is unable to see simultaneously different images presented one to each eye; usually in some areas of the eye the image presented to the left eye is seen, in others that presented to the right eye
- biological father — the man whose semen fertilized the ovum from which a child was born
- biological marker — a substance, physiological characteristic, gene, etc that indicates, or may indicate, the presence of disease, a physiological abnormality or a psychological condition
- biological mother — the mother who gave birth to a child
- biological parent — a parent who has conceived (biological mother) or sired (biological father) rather than adopted a child and whose genes are therefore transmitted to the child.
- biological rhythm — biorhythm.
- biological shield — a protective shield impervious to radiation, esp the thick concrete wall surrounding the core of a nuclear reactor