12-letter words containing o, s, p, r
- catastrophal — (rare) Catastrophic.
- catastrophes — Plural form of catastrophe.
- catastrophic — Something that is catastrophic involves or causes a sudden terrible disaster.
- cattleperson — Someone who works with, or rears cattle.
- centrosphere — the portion of the centrosome surrounding the centriole; center of an aster
- ceratopsians — Plural form of ceratopsian.
- ceroplastics — the art of wax modelling
- chairpersons — Plural form of chairperson.
- 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.
- cheesehopper — the larva of the cheese-fly, capable of a leaping movement using two claw-like mandibles which it also uses for digging
- chemotropism — the growth response of an organism, esp a plant, to a chemical stimulus
- chiropterans — Plural form of chiropteran.
- 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
- clergyperson — a member of the clergy
- clothes prop — a long wooden pole with a forked end, used to raise a line of washing to enable it to catch the breeze
- clothespress — a closet, wardrobe, or chest in which to keep clothes
- 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
- 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
- colour phase — a seasonal change in the coloration of some animals