12-letter words containing c, o, b, r
- carbon fiber — a very strong, lightweight synthetic fiber used in protective clothing, spacecraft components, racing shells, etc.
- carbon fibre — a black silky thread of pure carbon made by heating and stretching textile fibres and used because of its lightness and strength at high temperatures for reinforcing resins, ceramics, and metals, esp in turbine blades and for fishing rods
- carbon paper — Carbon paper is thin paper with a dark substance on one side. You use it to make copies of letters, bills, and other papers.
- carbon steel — steel whose characteristics are determined by the amount of carbon it contains
- carbon value — an empirical measurement of the tendency of a lubricant to form carbon when in use
- carbonaceous — of, resembling, or containing carbon
- carbonadoing — Present participle of carbonado.
- carbonatites — Plural form of carbonatite.
- carboxylated — Simple past tense and past participle of carboxylate.
- cardiophobia — An inordinate fear of heart disease.
- carolina bay — any of the shallow, usually marshy, oval depressions found in the coastal plains of the eastern U.S. that are heavily forested and have rich soil.
- carotid body — a small mass of cells and nerve endings adjacent to the carotid sinus that, in response to chemical changes in the blood, adjusts the respiratory rate.
- carry-on bag — a small bag that is taken inside an aircraft by hand personally by a passenger
- cassel brown — Vandyke brown.
- celebrations — Plural form of celebration.
- centerboards — Plural form of centerboard.
- cerebrations — Plural form of cerebration.
- cerebropathy — A hypochondriacal condition verging upon insanity, occurring in those whose brains have been unduly taxed.
- cerebrosides — Plural form of cerebroside.
- cerebrotonia — a personality type characterized by restraint, alertness, and an intellectual approach to life: said to be correlated with an ectomorph body type
- cerebrotonic — relating to or resembling a personality type characterized by shyness, introspection, and emotional restraint, and often associated with an ectomorphic physique
- chamber tomb — a prehistoric tomb with a chamber inside it in which the body of an important person was laid to rest
- chapter book — a children's book, typically a work of fiction, of moderate length and complexity, divided into chapters and intended for readers approximately seven to ten years old
- charbroiling — Present participle of charbroil.
- charlesbourg — city in S Quebec, Canada: pop. 71,000
- chatterboxes — Plural form of chatterbox.
- checkerbloom — a Californian malvaceous plant, Sidalcea malvaeflora, with pink or purple flowers
- checkerboard — A checkerboard is a square board with 64 black and white squares that is used for playing checkers or chess.
- cheese board — A cheese board is a board from which cheese is served at a meal.
- cheeseboards — Plural form of cheeseboard.
- chequerboard — Alternative spelling of checkerboard.
- child labour — the full-time employment of children below a minimum age laid down by statute
- chimneyboard — a partition or a cover to shut off a fireplace
- chlorambucil — an alkylating drug derived from nitrogen mustard, administered orally in the treatment of leukaemia and other malignant diseases. Formula: C14H19Cl2NO2
- chlorocarbon — a chemical compound containing carbon and chlorine, as carbon tetrachloride, or containing carbon, chlorine, and hydrogen, as chloroform.
- chokeberries — Plural form of chokeberry.
- chondroblast — a type of cell that develops into a chondrocyte or cartilage cell
- chord symbol — any of a series of letters and numerals, used as a shorthand indication of chords, esp in jazz, folk, or pop music
- chromophobia — Lb biology The quality of being resistant to staining.
- chronophobia — Fear of the passing of time, or more generally of time itself.
- ciliary body — the part of the vascular tunic of the eye that connects the choroid with the iris
- cinder block — A cinder block is a large grey brick made from coal cinders and cement which is used for building.
- circumboreal — of or having to do with plants and animals inhabiting boreal regions of North America and Eurasia
- clapboarding — Present participle of clapboard.
- clapperboard — A clapperboard consists of two pieces of wood that are connected by a hinge and hit together before each scene when making a film, to make it easier to match the sound and pictures of different scenes.
- clara barton — Clara, 1821–1912, U.S. philanthropist who organized the American Red Cross in 1881.
- clothesbrush — A brush for the clothes.
- cloud banner — banner cloud.
- cloudberries — Plural form of cloudberry.
- cluster bomb — A cluster bomb is a type of bomb which is dropped from an aircraft. It contains a large number of smaller bombs that spread out before they hit the ground.