13-letter words containing a, c, o, m
- caesium clock — a type of atomic clock that uses the frequency of radiation absorbed in changing the spin of electrons in caesium atoms
- calcium oxide — a white crystalline base used in the production of calcium hydroxide and bleaching powder and in the manufacture of glass, paper, and steel. Formula: CaO
- calcium-oxide — Also called burnt lime, calcium oxide, caustic lime, calx, quicklime. a white or grayish-white, odorless, lumpy, very slightly water-soluble solid, CaO, that when combined with water forms calcium hydroxide (slaked lime) obtained from calcium carbonate, limestone, or oyster shells: used chiefly in mortars, plasters, and cements, in bleaching powder, and in the manufacture of steel, paper, glass, and various chemicals of calcium.
- camerapersons — Plural form of cameraperson.
- camp fire boy — a boy who is a member of the Campfire Boys and Girls. Compare Camp Fire Girl.
- camp follower — If you describe someone as a camp follower, you mean that they do not officially belong to a particular group or movement but support it for their own advantage.
- campaniliform — Alternative form of campaniform.
- campanologist — the principles or art of making bells, bell ringing, etc.
- camphoraceous — similar to camphor
- camping stool — a stool which is suitable for use in temporary quarters, on holiday, etc, esp by being portable and easy to set up
- camping stove — a portable stove powered by butane gas canisters, designed to be used for cooking while camping
- campus police — police officers, security guards or students employed by a college or university to patrol the campus and to protect students, staff, and visitors
- campylobacter — a rod-shaped bacterium that causes infections in cattle and man. Unpasteurized milk infected with campylobacter is a common cause of gastroenteritis
- canton enamel — Chinese enamelware similar to Limoges.
- cape marigold — any composite plant of the genus Dimorphotheca, having variously colored, daisylike flowers.
- carbonium ion — type of positively charged organic ion
- carboxymethyl — (organic chemistry) The univalent radical -CH2-COOH derived from acetic acid.
- carcinomatous — a malignant and invasive epithelial tumor that spreads by metastasis and often recurs after excision; cancer.
- cardiomegalia — abnormal enlargement of the heart.
- carpenterworm — the larva of the carpenterworm moth.
- casement door — a door having glass panes throughout or nearly throughout its length.
- cash customer — a purchaser who pays cash rather than by check, credit card, or charge account.
- cat and mouse — Also called cat and rat. a children's game in which players in a circle keep a player from moving into or out of the circle and permit a second player to move into or out of the circle to escape the pursuing first player.
- cat-and-mouse — denoting a fight or contest in which participants attempt to confuse or deceive each other in a cruel or teasing way, esp before a final act of cruelty or unkindness
- catastrophism — an old doctrine, now discarded, that the earth was created and has subsequently been shaped by sudden divine acts which have no logical connection with each other rather than by gradual evolutionary processes
- catecholamine — any of a group of hormones that are catechol derivatives, esp adrenaline and noradrenaline
- categorematic — (of a word) able to stand alone as a term or subject
- caution money — a sum of money deposited as security for good conduct, against possible debts, etc
- caveat emptor — Caveat emptor means 'let the buyer beware', and is a warning to someone buying something that it is their responsibility to identify and accept any faults in it.
- cecropia moth — a large North American saturniid moth, Hyalophora (or Samia) cecropia, with brightly coloured wings and feathery antennae
- centrosomally — In a centrosomal way.
- cephalometric — Relating to cephalometrics.
- ceramic oxide — a compound of oxygen with nonorganic material: recently discovered to act as a high-temperature superconductor
- ceremonialism — A fondness for ceremony, especially in religion; ritualism.
- ceremonialist — of, relating to, or characterized by ceremony; formal; ritual: a ceremonial occasion.
- ceruloplasmin — a protein responsible for copper detoxification, found in the blood
- chamber opera — an opera requiring few performers and a small orchestra.
- chamber organ — a small compact organ used esp for the authentic performance of preclassical music
- chameleonlike — any of numerous Old World lizards of the family Chamaeleontidae, characterized by the ability to change the color of their skin, very slow locomotion, and a projectile tongue.
- championships — Plural form of championship.
- changing room — A changing room is a room where you can change your clothes and usually have a shower, for example at a sports centre.
- chase mortise — a mortise having one inclined narrow side.
- cheiromantist — A chiromancer.
- chemautotroph — an organism, such as a bacterium, that obtains its energy from inorganic reactions using simple compounds, such as ammonia or hydrogen sulphide
- chemical bond — a mutual attraction between two atoms resulting from a redistribution of their outer electrons
- chemosurgical — of or relating to chemosurgery
- chemotaxonomy — the taxonomy of species of organisms based on biochemical characteristics
- cherry tomato — a miniature tomato not much bigger than a cherry
- chiromantical — Of or pertaining to chiromancy.
- chlamydomonas — a green, fresh water alga of the class Chlorophyceae that is flagellate and made up of a single cell