12-letter words containing a, c, o, i
- barodynamics — the branch of mechanics concerned with heavy structures
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- basic jovial — (language) A subset of JOVIAL written ca. 1965.
- basidiocarps — Plural form of basidiocarp.
- basification — the process of making something alkaline
- bathochromic — denoting or relating to a shift to a longer wavelength in the absorption spectrum of a compound
- battological — tending to repeat words unnecessarily
- beachcombing — The action of a beachcomber.
- beacon light — a light signal for shipping
- beaconsfield — a town in SE England, in Buckinghamshire. Pop: 12 292 (2001)
- benzoic acid — a white crystalline solid occurring in many natural resins, used in the manufacture of benzoates, plasticizers, and dyes and as a food preservative (E210). Formula: C6H5COOH
- bibliomaniac — excessive fondness for acquiring and possessing books.
- bibliothecal — relating to a bibliotheca
- bicollateral — (of a vascular bundle) having two phloem groups to the inside and outside, respectively, of the xylem
- bifunctional — having two functions
- bill and coo — the parts of a bird's jaws that are covered with a horny or leathery sheath; beak.
- binary color — secondary color.
- bingo caller — the person who shouts out the numbers to bingo players
- binocularity — binocular characteristics
- bioacoustics — the study of animals' use of sound
- biographical — Biographical facts, notes, or details are concerned with the events in someone's life.
- bioinorganic — pertaining to the biological activity of metal complexes and nonmetal compounds based on elements other than carbon (contrasted with bioorganic).
- biologically — pertaining to biology.
- biomagnetics — the study of magnetic fields as a form of therapy
- biomechanics — the study of the mechanics of the movement of living organisms
- biometrician — a person who is knowledgeable about biometry
- biomolecular — relating to a biomolecule
- biotechnical — relating to biotechnology
- bishop's-cap — any of a genus (Mitella) of small woodland plants of the saxifrage family, with two-lobed seedcases shaped like a bishop's hat
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- blastocoelic — of or relating to the blastocoel
- block caving — a method of mining a large block of ore by systematically undercutting so the ore will cave. Compare cave (def 5a).
- block island — an island off the coast of and a part of Rhode Island, at the E entrance to Long Island Sound.
- block signal — a fixed railroad signal governing the movements of trains entering and using a given section of track.
- body fascism — intolerance of those whose bodies do not conform to a particular view of what is desirable
- boletic acid — fumaric acid.
- boniface iii — pope a.d. 607.
- boniface vii — antipope a.d. 974, 984–985.
- borosilicate — a salt of boric and silicic acids
- botticellian — Sandro [san-droh,, sahn-;; Italian sahn-draw] /ˈsæn droʊ,, ˈsɑn-;; Italian ˈsɑn drɔ/ (Show IPA), (Alessandro di Mariano dei Filipepi) 1444?–1510, Italian painter.
- boudin blanc — a boiled sausage made with light-colored meat, as veal or chicken, and without blood
- boxing match — a competition between two boxers
- braggadocios — empty boasting; bragging.
- branch point — Electricity. a point in an electric network at which three or more conductors meet.
- bring action — to start a lawsuit
- broadcasting — Broadcasting is the making and sending out of television and radio programmes.
- buccolingual — of or relating to the cheek and tongue.
- bunco artist — a confidence trickster or con artist
- buoyancy aid — a type of usually foam-filled lifejacket designed for use in sports such as canoeing