12-letter words containing c, h, t, o
- chaos theory — a theory, applied in various branches of science, that apparently random phenomena have underlying order
- chapter book — a children's book, typically a work of fiction, of moderate length and complexity, divided into chapters and intended for readers approximately seven to ten years old
- chapter room — a room for the use of the chapter of a religious institution
- 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
- charcoal rot — a disease of plants, especially sorghum, corn, etc., characterized by basal stem lesions and a black discoloration and dry rot of the internal tissues at the base of the stem and upper roots, caused by a fungus, Macrophomina phaseoli.
- charity shop — A charity shop is a shop that sells used goods cheaply and gives its profits to a charity.
- charity toss — a free shot given as a penalty for a foul
- charity work — unpaid work, usually fundraising, done in aid of a charity
- chart topper — a singer, band or video that comes top in the charts
- charterhouse — a Carthusian monastery
- chartophylax — an official who serves chiefly as the chancellor and archivist of a diocese.
- chatterboxes — Plural form of chatterbox.
- cheese cloth — a lightweight cotton fabric of open texture.
- cheiloplasty — plastic surgery of the lip.
- cheluviation — the leaching of chelates through soil
- chemiosmotic — relating to the process of chemiosmosis
- chemotherapy — Chemotherapy is the treatment of disease using chemicals. It is often used in treating cancer.
- chemotrophic — any organism that oxidizes inorganic or organic compounds as its principal energy source.
- chemotropism — the growth response of an organism, esp a plant, to a chemical stimulus
- cherrystones — Plural form of cherrystone.
- chestnut oak — any of several North American oaks, as Quercus prinus, having serrate or dentate leaves resembling those of the chestnut.
- chill factor — windchill factor
- china closet — a cabinet or cupboard for storing or exhibiting chinaware.
- chincoteague — a town on a small island in a lagoon (Chincoteague Bay) in E Virginia: annual wild pony roundup.
- chinese tour — a tour in which visitors are shown only what those in charge want them to see.
- chinhuangtao — a seaport in NE Hebei province, in NE China, on the Bohai.
- chirognomist — someone who studies chirognomy
- chiropractic — Chiropractic is the treatment of injuries by pressing and moving people's joints, especially the spine.
- chiropractor — A chiropractor is a person who treats injuries by chiropractic.
- 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.
- chlorapatite — (mineral) A variety of apatite containing chloride instead of fluoride.
- chlorimetric — of or relating to chlorimetry
- chlorinating — Present participle of chlorinate.
- chlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- chloroacetic — an acid made by chlorinating acetic acid
- chloroethane — ethyl chloride.
- chloroethene — vinyl chloride.
- chlorophytes — Plural form of chlorophyte.
- chlorophytum — any plant of the genus Chlorophytum, esp C. elatum variegatum, grown as a pot plant for its long narrow leaves with a light central stripe, and characterized by the production of offsets at the end of long scapes: family Liliaceae
- chloroplasts — Plural form of chloroplast.
- chocolatiers — Plural form of chocolatier.
- choirmasters — Plural form of choirmaster.
- cholinolytic — capable of blocking the action of acetylcholine and related compounds.
- chondroblast — a type of cell that develops into a chondrocyte or cartilage cell
- chondrostian — relating to the class Chondrostei of fish with fin rays
- chopper tool — a core tool of flint or stone, with a transverse cutting edge, characteristic of cultures in Asia and parts of the Middle East and Europe
- choreologist — a person who is expert in choreology
- choroid coat — a pigmented, highly vascular membrane of the eye that is continuous with the iris and lies between the sclera and the retina, functioning to nourish the retina and absorb scattered light.