15-letter words containing a, c, e, l, r, o
- autocorrelative — Relating to autocorrelation.
- autofluorescent — Of, pertaining to, or exhibiting autofluorescence.
- automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
- bacterial ghost — a bacterial cell that is emptied and filled artificially with another substance
- bacteriological — Of or relating to bacteriology or bacteria.
- balance control — a state of equilibrium or equipoise; equal distribution of weight, amount, etc.
- ballroom dancer — a person who participates in ballroom dancing
- barcelona chair — an armless, padded leather chair on a steel frame shaped like a curved X: Barcelona is a trademark for this chair
- barium chloride — a poisonous compound, BaCl2, consisting of flat white crystals that are soluble in water: it is used to treat water, metals, leather, etc.
- bathroom scales — scales typically kept in a bathroom for people to weigh themselves
- beach goldenrod — a composite plant, Solidago sempervirens, of eastern and southern North America, having a thick stem and large, branched, one-sided terminal clusters of yellow flowers, flourishing on sea beaches or salt marshes.
- benedict arnold — Benedict, 1741–1801, American general in the Revolutionary War who became a traitor.
- benzal chloride — a colorless, oily liquid, C 7 H 6 Cl 2 , used chiefly in the synthesis of benzaldehyde, and in the manufacture of dyes.
- bidirectionally — in a bidirectional manner
- black horehound — a hairy unpleasant-smelling chiefly Mediterranean plant, Ballota nigra, having clusters of purple flowers: family Lamiaceae (labiates)
- black operation — a covert and undocumented military operation
- black snakeroot — a tall bugbane, Cimicifuga racemosa, of the buttercup family, of eastern North America, having thin, tapering, toothed or deeply cut leaflets and branched clusters of small, white flowers.
- bladder campion — a European caryophyllaceous plant, Silene vulgaris, having white flowers with an inflated calyx
- blockade runner — a person, ship etc that tries to carry goods through a blockade
- blockade-runner — a ship or person that passes through a blockade.
- borderline case — a person or thing that is not clearly classifiable as something
- brachiocephalic — of, relating to, or supplying the arm and head
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- bronchial tubes — the bronchi or their smaller divisions
- bronzed grackle — the western subspecies of the American bird, the common grackle, Quiscalus quiscula versicolor, having bronzy, iridescent plumage.
- bucket elevator — a chain of buckets for raising liquids or materials to a higher level
- bullock's heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- bullock's-heart — the large, edible fruit of a tropical American tree, Annona reticulata.
- cache la poudre — a river in N Colorado, flowing N and E to the South Platte River. 126 miles (203 km) long.
- calcareous clay — soil with high limestone content
- calcareous tufa — tufa
- calcium blocker — any of a group of drugs that prevent the influx of calcium into excitable tissues such as smooth muscle of the heart or arterioles, used in the treatment of angina, hypertension, and certain arrhythmias.
- caldecott award — an annual award in the U.S. for an outstanding illustrated juvenile book.
- calendarization — the process of calendarizing
- california rose — a cultivated variety of a bindweed, Calystegia hederacea, having showy, double, rose-colored flowers.
- call-out charge — a set amount charged for a repairman to come to one's house, or to a broken-down vehicle, which is added to the cost of the actual repair
- calorific value — the quantity of heat produced by the complete combustion of a given mass of a fuel, usually expressed in joules per kilogram
- camelot library — (library)
- camp counsellor — an adult supervisor assigned to a group of campers at a summer camp
- camphorated oil — a liniment consisting of camphor and peanut oil, used as a counterirritant
- cannonball tree — a South American tree, Couroupita guianensis, bearing round, woody-husked fruit whose shells are used to make containers and utensils.
- caprifoliaceous — of, relating to, or belonging to the Caprifoliaceae, a family of N temperate shrubs, small trees, and climbers including honeysuckle, elder, and guelder-rose
- cardinal flower — a campanulaceous plant, Lobelia cardinalis of E North America, that has brilliant scarlet, pink, or white flowers
- cardinal vowels — a set of theoretical vowel sounds, based on the shape of the mouth needed to articulate them, that can be used to classify the vowel sounds of any speaker in any language
- carpometacarpal — Anatomy. of or relating to the carpus and the metacarpus.
- casual labourer — a person who is employed on a temporary, rather than a permanent or regular basis
- categoricalness — The quality of being categorical, positive, or absolute.
- category killer — a person, product, or business that dominates a particular market
- cathedral choir — the choir, traditionally consisting of boys and men, that sings in cathedral services
- cauliflower ear — permanent swelling and distortion of the external ear as the result of ruptures of the blood vessels: usually caused by blows received in boxing