9-letter words containing a, c, o, i
- bandicoot — any agile terrestrial marsupial of the family Peramelidae of Australia and New Guinea. They have a long pointed muzzle and a long tail and feed mainly on small invertebrates
- barachois — (in the Atlantic Provinces of Canada) a shallow lagoon formed by a sand bar
- barcoding — The assignment of a barcode to a product and the printing of the barcode on the product.
- barocchio — Giacomo (ˈdʒakomo)
- barricado — a barricade.
- basilicon — any of a variety of healing ointments applied to wounds in early medicine, commonly using lard or oil, resin, and wax
- beaconing — a guiding or warning signal, as a light or fire, especially one in an elevated position.
- beccafico — any of various European songbirds, esp warblers of the genus Sylvia, eaten as a delicacy in Italy and other countries
- betatopic — (of atoms) differing in proton number by one, theoretically as a result of emission of a beta particle
- bezoardic — relating to bezoar
- bibacious — tending to drink in excess
- bicoastal — Someone or something that is bicoastal lives or occurs on both the east coast and the west coast of the U.S.
- bicompact — compact1 (def 7).
- biconcave — (of a lens) having concave faces on both sides; concavo-concave
- biconical — an object shaped like two cones with their bases together.
- bifocaled — wearing bifocals
- bilocular — divided into two chambers or cavities
- binocular — involving, relating to, seeing with or intended for both eyes
- bioactive — (of a substance) having or producing an effect on living tissue
- biopiracy — the use of wild plants by international companies to develop medicines, without recompensing the countries from which they are taken
- biosocial — relating to the interaction of biological and social elements
- biostatic — the branch of biology dealing with the structure of organisms in relation to their functions (opposed to biodynamics).
- boccaccio — Giovanni (dʒoˈvani). 1313–75, Italian poet and writer, noted particularly for his Decameron (1353), a collection of 100 short stories. His other works include Filostrato (?1338) and Teseida (1341)
- bodacious — If you say that someone or something is bodacious, you mean that they are very good or impressive.
- bombastic — If you describe someone as bombastic, you are criticizing them for trying to impress other people by saying things that sound impressive but have little meaning.
- botanical — Botanical books, research, and activities relate to the scientific study of plants.
- branchio- — gills
- bricolage — the jumbled effect produced by the close proximity of buildings from different periods and in different architectural styles
- bromantic — noting or pertaining to a bromance: You might call this movie a bromantic comedy.
- bronchial — Bronchial means affecting or concerned with the bronchial tubes.
- c rations — tinned food formerly issued in packs to US soldiers
- cabin boy — a boy who waits on the officers and passengers of a ship
- cabriolet — A cabriolet is a type of car with two doors and a convertible top.
- cacodylic — of, relating to, or characteristic of the cacodyl group.
- cacoepist — One who engages in cacoepy, especially frequently.
- cacogenic — dysgenics.
- cacomixle — Alternative spelling of cacomixl.
- cacotopia — a dystopia
- cactiform — resembling a cactus
- caesionid — (zoology) Any member of the Caesionidae.
- cafe noir — black coffee
- cairngorm — a smoky yellow, grey, or brown variety of quartz, used as a gemstone
- calcicole — any plant that thrives in lime-rich soils
- calciform — Having the form of calx, chalk or lime.
- caledonia — Scotland
- caliatour — a tropical dyewood, possibly red sandalwood
- calimanco — calamanco.
- calimocho — a cocktail popular in Spanish-speaking countries, consisting of a mixture of cola and red wine
- caliology — the study of birds' nests
- calliopes — Plural form of calliope.