12-letter words containing a, c, o, m
- bronchospasm — an abnormal contraction of the bronchi resulting in restriction of the airway
- cabbage moth — a common brownish noctuid moth, Mamestra brassicae, the larva of which is destructive of cabbages and other plants
- cache memory — a small area of memory in a computer that can be accessed very quickly
- cacodaemonic — Daemonic.
- calamitously — In a calamitous manner.
- call time on — If you call time on something, you end it.
- call to arms — a command to report for active military duty.
- call to mind — to remember or cause to be remembered
- calorimeters — Plural form of calorimeter.
- calorimetric — the measurement of heat.
- calumniation — to make false and malicious statements about; slander.
- calumniators — Plural form of calumniator.
- calumniatory — of, involving, or using calumny; slanderous; defamatory.
- calumniously — in a calumnious manner
- cam follower — the slider or roller in contact with the cam that transmits the movement dictated by the cam profile
- camelopardus — a faint extensive constellation in the N hemisphere close to Ursa Major and Cassiopeia
- camera phone — A camera phone is a mobile phone that can also take photographs.
- caméra stylo — the use of the camera as a means of personal expression, esp as practised by some directors of the New Wave
- camerapeople — a person who operates a camera, especially a movie or TV camera.
- cameraperson — a camera operator
- camomile tea — a medicinal beverage made from the fragrant leaves and flowers of any of these plants
- camouflaging — Present participle of camouflage.
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- camphor ball — mothball
- camphor tree — a lauraceous evergreen E Asian tree, Cinnamomum camphora, whose aromatic wood yields camphor
- camphorating — Present participle of camphorate.
- campo formio — a village in NE Italy, in Friuli-Venezia Giulia: scene of the signing of a treaty in 1797 that ended the war between revolutionary France and Austria
- campo grande — a city in SW Brazil, capital of Mato Grosso do Sul state on the São Paulo–Corumbá railway: market centre. Pop: 746 000 (2005 est)
- campodeiform — resembling insects of the genus Campodea
- can of worms — a complicated problem
- canoe slalom — a competitive event in which a canoeist maneuvers through a slalom course, usually in white water.
- cape comorin — a headland at the southernmost point of India, in Tamil Nadu state
- cardiomegaly — abnormal enlargement of the heart.
- career woman — A career woman is a woman with a career who is interested in working and progressing in her job, rather than staying at home looking after the house and children.
- carol stream — a town in NE Illinois.
- carpetmonger — a person who frequently visits women's boudoirs
- cash economy — an economic system, or part of one, in which financial transactions are carried out in cash rather than via direct debit, standing order, bank transfer, or credit card
- catamountain — any of several wildcats, esp. the leopard or the European wildcat
- cathetometer — an instrument measuring minute height differences
- cathiodermie — a beauty treatment for the skin, which involves using electrotherapy
- causationism — the theory of universal causation
- centimorgans — Plural form of centimorgan.
- cephalometer — an instrument for positioning the human head for X-ray examination in cephalometry
- cephalometry — measurement of the dimensions of the human head by radiography: used mainly in orthodontics
- ceramography — the study, analysis, and preparation of ceramic microstructures, usually for industrial use
- ceremonially — of, relating to, or characterized by ceremony; formal; ritual: a ceremonial occasion.
- cessationism — The concept, amongst most Christians, that the works of the Holy Spirit (speaking in tongues, prophecy, healing, and miracles) ceased at some point in history.
- chain smoker — person: smokes heavily
- chain-smoker — A chain-smoker is a person who chain-smokes.
- chalazogamic — relating to the process of chalazogamy