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17-letter words containing a, c, o, r

  • artistic director — a person in charge of the artistic direction of a theatre company
  • as the crow flies — If you say that a place is a particular distance away as the crow flies, you mean that it is that distance away measured in a straight line.
  • ascend the throne — to become king or queen
  • ascertained goods — specific goods
  • ask for the check — If you ask for the check, you ask the waitperson in a restaurant to bring you a piece of paper on which the price of your meal is written.
  • associate of arts — a degree granted especially by junior colleges after completion of two years of study. Abbreviation: A.A.
  • association fiber — any of several nerve fibers connecting different areas of the cerebral cortex in the same hemisphere.
  • associative array — (programming)   (Or "hash", "map", "dictionary") An array where the indices are not just integers but may be arbitrary strings.
  • astral projection — the departure of the astral body from the physical body, in order to travel to the astral plane
  • astronomical unit — a unit of distance used in astronomy equal to the mean distance between the earth and the sun. 1 astronomical unit is equivalent to 1.495 × 1011 metres or about 9.3 × 107 miles
  • astronomical year — year (def 4b).
  • at close quarters — If you do something at close quarters, you do it very near to a particular person or thing.
  • at cross purposes — an opposing or contrary purpose.
  • at cross-purposes — If people are at cross-purposes, they do not understand each other because they are working towards or talking about different things without realizing it.
  • 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.
  • autocorrelational — Of or pertaining to autocorrelation.
  • automatic writing — writing performed without apparent intent or conscious control, especially to achieve spontaneity or uncensored expression.
  • avogadro constant — the number of atoms or molecules in a mole of a substance
  • 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
  • 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
  • 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.
  • beyond comparison — outstanding, without equal
  • 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.
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