17-letter words containing a, c, i
- archconfraternity — a confraternity having the right to associate itself with confraternities that are similar to it, and to impart to them its privileges and indulgences.
- archconservatives — Plural form of archconservative.
- archimedes' screw — an ancient type of water-lifting device making use of a spiral passage in an inclined cylinder. The water is raised when the spiral is rotated
- architect's table — a table having a surface consisting of a drawing board adjustable to various heights and angles.
- architectonically — In terms of architectonics.
- aristolochiaceous — belonging to the Aristolochiaceae, the birthwort family of plants.
- arithmetic-series — a sequence in which each term is obtained by the addition of a constant number to the preceding term, as 1, 4, 7, 10, 13, and 6, 1, −4, −9, −14.
- armature reaction — a change in the magnetic field of a dynamo caused by the magnetic field induced by the current flowing through the armature.
- armchair shopping — buying goods using a computer, telephone, or television in the home or via the postal system
- aromatic compound — an organic compound that contains one or more benzene or equivalent heterocyclic rings: many such compounds have an agreeable odor.
- arresting officer — the police officer making an arrest
- arsenic disulfide — an orange-red, water-insoluble, poisonous powder, As 4 S 4 , As 2 S 2 , or AsS, used chiefly in the manufacture of fireworks.
- arsenic poisoning — poisoning by arsenic
- articulated joint — Anatomy. a flexible joint.
- articulated lorry — a lorry made in two separate sections, a tractor and a trailer, connected by a pivoted bar
- articulatory loop — a short-term memory system that enables a person to remember short strings of words by rehearsing them repeatedly in his head
- artificial kidney — a mechanical apparatus for performing haemodialysis
- artificial person — a human being, whether an adult or child: The table seats four persons.
- 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.
- ascertained goods — specific goods
- assembly district — one of a fixed number of districts into which a state is divided, each district electing one member to the lower house of the state legislature.
- assessable income — the portion of one's income that is subject to tax
- assistant teacher — a person who assists a teacher in their work or who is not yet fully qualified as a teacher
- associate of arts — a degree granted especially by junior colleges after completion of two years of study. Abbreviation: A.A.
- associated states — Anguilla, Antigua, Dominica, Grenada, St Kitts-Nevis, St Lucia, and St Vincent and the Grenadines, which had the status of associated statehood
- 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).
- asymmetrical bars — a set of parallel bars, having one bar fixed at 230 cm (7 ft, 6 in) and the other at 150 cm (4 ft, 11 in), used by women gymnasts
- at a snail's pace — If you say that someone does something at a snail's pace, you are emphasizing that they are doing it very slowly, usually when you think it would be better if they did it much more quickly.
- 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.
- 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)
- audience research — research into the make-up and habits of the audience of a particular television or radio programme or network
- 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.
- australia current — a branch of the South Equatorial Current flowing SW from around Fiji to the E coast of Australia and then S along the coast.
- 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
- axis of abscissas — x-axis (def 1).
- axis-of-abscissas — x-axis (def 1).
- 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.