12-letter words containing a, s, p, o
- cameraperson — a camera operator
- camp bastion — a large British military base in Helmand province, Afghanistan, built in 2006
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- caparisoning — Present participle of caparison.
- cape sounion — Cape, a cape in E central Greece, SE of Athens, at the tip of the Attica peninsula, in W Aegean Sea.
- cape sparrow — a sparrow, Passer melanurus, very common in southern Africa: family Ploceidae
- capillaceous — having numerous filaments resembling hairs or threads
- capital cost — a cost incurred on the purchase of land, buildings, construction and equipment to be used in the production of goods or the rendering of services
- capital loss — A capital loss is a loss on investment property.
- capriciously — subject to, led by, or indicative of a sudden, odd notion or unpredictable change; erratic: He's such a capricious boss I never know how he'll react.
- capsaicinoid — (organic chemistry) Any of a class of irritant compounds, related to capsaicin, that are responsible for the heat of chilli peppers.
- captiousness — The state of being captious.
- cardiographs — Plural form of cardiograph.
- carisoprodol — a crystalline, water-soluble powder, C 12 H 24 N 2 O 4 , used as a muscle relaxant.
- carpophagous — feeding on fruit
- cassiopeia a — a very strong radio and X-ray source in the constellation Cassiopeia, identified as the remnant of a supernova thought to have occurred in the late 17th century
- castile soap — a hard soap made from olive oil and sodium hydroxide
- cataphoreses — Plural form of cataphoresis.
- cataphoresis — electrophoresis
- catastrophal — (rare) Catastrophic.
- catastrophes — Plural form of catastrophe.
- catastrophic — Something that is catastrophic involves or causes a sudden terrible disaster.
- catch points — railway points designed to derail a train running back in the wrong direction to prevent collision with a following train
- cattleperson — Someone who works with, or rears cattle.
- ceratopsians — Plural form of ceratopsian.
- ceroplastics — the art of wax modelling
- chairpersons — Plural form of chairperson.
- championship — A championship is a competition to find the best player or team in a particular sport.
- chapter stop — any of several markers placed at intervals on a DVD film, enabling the viewer to find and select particular scenes
- chapterhouse — the building attached to a cathedral, collegiate church, or religious house in which the chapter meets
- charity shop — A charity shop is a shop that sells used goods cheaply and gives its profits to a charity.
- cheiloplasty — plastic surgery of the lip.
- chiropterans — Plural form of chiropteran.
- chloroplasts — Plural form of chloroplast.
- choreographs — Third-person singular simple present indicative form of choreograph.
- chorus pedal — an electronic device that creates the effect of more than one sound from a single source by combining a short delay with slight deviations in pitch
- choux pastry — a very light pastry made with eggs, used for eclairs, etc
- christophany — an appearance or emergence of Christ following his crucifixion
- chromatopsia — an irregularity in the ability to see colours properly
- chromoplasts — Plural form of chromoplast.
- chronographs — Plural form of chronograph.
- chrysography — the art of writing in ink made of powdered gold suspended in a small amount of glair or gum.
- chrysophanol — (organic compound) A chemical compound found in rhubarb.
- cladocarpous — pleurocarpous.
- cladosporium — any of the species of fungi in the genus Cladosporium
- clap eyes on — to catch sight of
- clonic spasm — Pathology. a sudden, abnormal, involuntary muscular contraction, consisting of a continued muscular contraction (tonic spasm) or of a series of alternating muscular contractions and relaxations (clonic spasm)
- cock sparrow — a male sparrow
- coleopterans — Plural form of coleopteran.
- colour phase — a seasonal change in the coloration of some animals