13-letter words containing r, i, o, t
- cartiliginous — Alternative form of cartilaginous.
- carton-pierre — papier-mâché decorated in imitation of wood, stone, or metal, and chiefly used for ornamental statuary or decorative motifs.
- cartoon strip — A cartoon strip is a series of drawings that tells a story.
- caster action — the tendency, caused by the design of the mounting, of a wheel to turn into its plane of rotation
- catastrophise — Alt form catastrophize.
- catastrophism — an old doctrine, now discarded, that the earth was created and has subsequently been shaped by sudden divine acts which have no logical connection with each other rather than by gradual evolutionary processes
- catastrophist — the doctrine that certain vast geological changes in the earth's history were caused by catastrophes rather than gradual evolutionary processes.
- catastrophize — (obsolete) To end a comedy.
- categorematic — (of a word) able to stand alone as a term or subject
- categorically — without exceptions or conditions; absolute; unqualified and unconditional: a categorical denial.
- categorisable — Alternative spelling of categorizable.
- categorizable — Capable of being categorized.
- caulifloweret — an individual floret from a cauliflower
- cauterisation — Alt form cauterization.
- cauterization — to burn with a hot iron, electric current, fire, or a caustic, especially for curative purposes; treat with a cautery.
- cecropia moth — a large North American saturniid moth, Hyalophora (or Samia) cecropia, with brightly coloured wings and feathery antennae
- centuries-old — hundreds of years old
- cephalometric — Relating to cephalometrics.
- ceremonialist — of, relating to, or characterized by ceremony; formal; ritual: a ceremonial occasion.
- certification — a document attesting the truth of a fact or statement
- certificatory — Serving to certify something.
- cerumenolytic — (pharmacology) A chemical that softens or removes cerumen (earwax).
- chain reactor — reactor (def 4).
- chalicotheres — Plural form of chalicothere.
- chart-topping — very popular; coming top in the charts
- chase mortise — a mortise having one inclined narrow side.
- checkout girl — a female employee who works on a supermarket checkout
- cheiromantist — A chiromancer.
- chemisorption — an adsorption process in which an adsorbate is held on the surface of an adsorbent by chemical bonds
- chiaroscurist — A painter who uses light and shade rather than colour to create the illusion of volume.
- child support — If a parent pays child support, they legally have to pay money to help provide things such as food and clothing for a child with whom they no longer live.
- chirographist — a person who studies or who is knowledgeable about handwriting styles
- chiromantical — Of or pertaining to chiromancy.
- chiropractics — The practice of a chiropractor.
- chiropractors — Plural form of chiropractor.
- chlorargyrite — a mineral, the naturally occurring form of silver chloride, formed in the oxidation process of silver
- chloroformist — a person who is skilled in the use of or who dispenses or provides chloroform as part of their job
- chloromycetin — chloramphenicol
- chloroplastic — a plastid containing chlorophyll.
- cholesteremia — cholesterolemia.
- choripetalous — polypetalous
- chrestomathic — (of teaching or learning) That has a practical use.
- christmas box — a tip or present given at Christmas, esp to postmen, tradesmen, etc
- chromatically — In a chromatic manner.
- chromaticness — the attribute of colour that involves both hue and saturation
- chromatolysis — the dissolution of stained material, such as chromatin in injured cells
- chromatolytic — relating to chromatolysis
- chromatophile — Also, chromophilic, chromophilous [kroh-mof-uh-luh s] /kroʊˈmɒf ə ləs/ (Show IPA), chromatophilic, chromatophilous. staining readily.
- chromesthesia — (neurology, psychology) sound-to-color synaesthesia.
- chromoprotein — any of a group of conjugated proteins, such as haemoglobin, in which the protein is joined to a coloured compound, such as a metal-containing porphyrin