12-letter words containing p, c, o, s
- chemotropism — the growth response of an organism, esp a plant, to a chemical stimulus
- chinese copy — an exact copy of an original
- chiropterans — Plural form of chiropteran.
- chisel point — a nail or spike with the point formed by two flat inclined sides meeting at a sharp angle.
- chlorophylls — Plural form of chlorophyll.
- chlorophytes — Plural form of chlorophyte.
- chloroplasts — Plural form of chloroplast.
- chlorospinel — a variety of spinel used as a gem, colored grass-green by the presence of copper.
- chlorpyrifos — a broad-spectrum insecticide, C 9 H 11 Cl 3 NO 3 PS, used on lawns and ornamental plants.
- chordophones — Plural form of chordophone.
- 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
- christophene — chayote.
- chromatopsia — an irregularity in the ability to see colours properly
- chromophores — Plural form of chromophore.
- chromoplasts — Plural form of chromoplast.
- chromosphere — a gaseous layer of the sun's atmosphere extending from the photosphere to the corona and visible during a total eclipse of the sun
- chronographs — Plural form of chronograph.
- chronoscopes — Plural form of chronoscope.
- 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.
- chrysophytes — Plural form of chrysophyte.
- churchperson — A person involved with the church; a churchgoer or cleric.
- chymotrypsin — a powerful proteolytic enzyme secreted from the pancreas in the form of chymotrypsinogen, being converted to the active form by trypsin
- cinque ports — an association of ports on the SE coast of England, originally consisting of Hastings, Romney, Hythe, Dover, and Sandwich, which from late Anglo-Saxon times provided ships for the king's service in return for the profits of justice in their courts. The Cinque Ports declined with the growth of other ports and surrendered their charters in 1685
- cladocarpous — pleurocarpous.
- cladosporium — any of the species of fungi in the genus Cladosporium
- clap eyes on — to catch sight of
- cleptobiosis — an ecological relationship in which members of one species, as of ants, steal food from another.
- clergyperson — a member of the clergy
- 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)
- close-lipped — not talking or revealing much
- clothes pole — a post to which a clothesline is attached
- clothes prop — a long wooden pole with a forked end, used to raise a line of washing to enable it to catch the breeze
- clothes shop — a shop selling clothes
- clothespress — a closet, wardrobe, or chest in which to keep clothes
- clovis point — flint projectile dating from the 10th millennium bc
- co-ownership — the fact or state of being one of the joint owners of something
- co-president — a person who shares the highest position in an organization with another person
- cock sparrow — a male sparrow
- coenospecies — a collection of related species able to hybridize
- coffee spoon — a small spoon (smaller than a teaspoon) for stirring coffee
- cold-pressed — (of an unrefined oil such as olive oil) produced by pressing the parent seed, nut, or grain at the lowest possible temperature without any further pressing
- coleopterans — Plural form of coleopteran.
- coleopterist — a person who studies the Coleoptera
- coleopterous — belonging to the order Coleoptera
- colonoscopes — Plural form of colonoscope.
- colour phase — a seasonal change in the coloration of some animals