13-letter words containing p, a, c, t
- century plant — an agave, Agave americana, native to tropical America but naturalized elsewhere, having very large spiny greyish leaves and greenish flowers on a tall fleshy stalk. It blooms only once in its life, after 10 to 30 years (formerly thought to flower after a century)
- cephalization — (in the evolution of animals) development of a head by the concentration of feeding and sensory organs and nervous tissue at the anterior end
- cephalometric — Relating to cephalometrics.
- cephalothorax — the anterior part of many crustaceans and some other arthropods consisting of a united head and thorax
- chaetophorous — bearing bristles; setigerous.
- chain printer — a line printer in which the type is on a continuous chain, used to print computer output
- chapman stick — an electronically amplified musical instrument with ten or twelve strings and a fretted neck, which is played by striking the strings against the frets with the fingers
- chapter house — A chapter house is the building or set of rooms in the grounds of a cathedral where the members of the clergy hold their meetings.
- chart-topping — very popular; coming top in the charts
- charter party — charter (def 5).
- charter plane — a plane that has been chartered
- chemautotroph — an organism, such as a bacterium, that obtains its energy from inorganic reactions using simple compounds, such as ammonia or hydrogen sulphide
- chieftainship — the chief of a clan or a tribe.
- chilkoot pass — a mountain pass in North America between SE Alaska and NW British Columbia, over the Coast Range
- chip graffiti — microchip art
- chirographist — a person who studies or who is knowledgeable about handwriting styles
- chiropractics — The practice of a chiropractor.
- chiropractors — Plural form of chiropractor.
- chloroplastal — of or like a chloroplast
- chloroplastic — a plastid containing chlorophyll.
- chopped steak — ground, cooked beef, usually served as a main course.
- choripetalous — polypetalous
- chromatograph — a piece of equipment that provides the outcome of a chromatographic test
- chromatophile — Also, chromophilic, chromophilous [kroh-mof-uh-luh s] /kroʊˈmɒf ə ləs/ (Show IPA), chromatophilic, chromatophilous. staining readily.
- chromatophore — a cell in the skin of frogs, chameleons, etc, in which pigment is concentrated or dispersed, causing the animal to change colour
- chromotherapy — the use of colour and light as a restorative therapy and to promote mental and physical well-being
- chronotherapy — an endeavour to readjust the body clock to enable a person to waken earlier by going to sleep later and later every day until the required waking hour is achieved
- chrysotherapy — gold therapy.
- chthonophagia — (disease) A disease characterized by the impulsive consumption of dirt, observed in some parts of the southern United States as well as the West Indies.
- cinematograph — a combined camera, printer, and projector
- circumspatial — Of or pertaining to the surrounding space.
- city planning — City planning is the planning and design of all the new buildings, roads, and parks in a place in order to make them attractive and convenient for the people who live there.
- claustrophobe — a person who suffers from claustrophobia.
- clear-up rate — the percentage of a category of crimes that are solved
- cleptomaniacs — kleptomania.
- climatography — an account of a region's climate
- clistocarpous — Mycology. having cleistothecia.
- co-authorship — the state a coauthor
- coadjutorship — the state of being a coadjutor
- coastal plain — a plain extending along a coast.
- coconspirator — a fellow conspirator
- cognitive map — a mental map of one's environment
- coin-operated — (of a machine) operated by the insertion of a coin
- combat troops — troops who are engaged in fighting
- compact cobol — (language) A subset of COBOL defined, but not published, ca. 1961.
- compactedness — the state of being compacted
- compagination — a union or act of joining
- companies act — (in Britain) any of various laws that govern the formation, dissolution, and management of companies
- companion set — a set of fire irons on a stand
- company store — a retail store operated by a company for the convenience of the employees, who are required to buy from the store.