13-letter words containing c, h, o, r
- arachnophobia — an abnormal fear of spiders
- arachnophobic — an abnormal or pathological fear of spiders.
- archaelogical — Nonstandard spelling of archaeological.
- archaeobotany — the analysis and interpretation of plant remains found at archaeological sites
- archaeologian — (archaic) An archaeologist.
- archaeologist — a specialist in archaeology, the scientific study of prehistoric peoples and their cultures by analysis of their artifacts, inscriptions, monuments, etc.
- archaeometric — relating to archaeometry
- archaeopteryx — any of several extinct primitive birds constituting the genus Archaeopteryx, esp A. lithographica, which occurred in Jurassic times and had teeth, a long tail, well-developed wings, and a body covering of feathers
- archaezoology — the analysis and interpretation of animal remains found at archaeological sites
- archbishopric — the rank, office, or jurisdiction of an archbishop
- archeological — of or relating to archaeology.
- archeologists — archaeology.
- archeptolemus — (in the Iliad) the son of Iphitus who served as a charioteer for Hector.
- archidiaconal — of or relating to an archdeacon or his office
- archipelagoes — Plural form of archipelago.
- architectonic — denoting, relating to, or having architectural qualities
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arthroconidia — Plural form of arthroconidium.
- arthroscopies — Plural form of arthroscopy.
- astrophysical — Of or pertaining to astrophysics.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atomic theory — any theory in which matter is regarded as consisting of atoms, esp that proposed by John Dalton postulating that elements are composed of atoms that can combine in definite proportions to form compounds
- audiographics — audiographic teleconferencing
- autapomorphic — (biology) Describing any characteristic that has evolved in only a single species (or other taxon).
- authenticator — a person or thing that authenticates.
- autocatharsis — a therapeutic process designed to free unconscious disturbances by having the patient write about his or her experiences, impressions, etc.
- autographical — Relating to, or used in, the process of autography.
- autorickshaws — Plural form of autorickshaw.
- baal merodach — Marduk.
- bachelor flat — a flat lived in, or intended for a bachelor
- bachelor girl — a young unmarried woman, esp one who is self-supporting
- bachelor seal — a young male seal, esp a fur seal, that has not yet mated
- bachelorettes — Plural form of bachelorette.
- bacteriophage — a virus that is parasitic in a bacterium and multiplies within its host, which is destroyed when the new viruses are released
- bacteriophagy — the action of a bacteriophage
- batch-process — to perform batch processing on (files)
- batrachotoxin — a steroidal alkaloid, C31H42N2O6, found in the skin of certain Neotropical frogs (genus Phyllobates) and used on poison arrows: one of the most powerful natural neurotoxins known
- behavioristic — the theory or doctrine that human or animal psychology can be accurately studied only through the examination and analysis of objectively observable and quantifiable behavioral events, in contrast with subjective mental states.
- benching iron — a triangular, pronged plate driven into the ground to provide a temporary bench mark or turning point.
- bibliographic — a complete or selective list of works compiled upon some common principle, as authorship, subject, place of publication, or printer.
- bibliothecary — a librarian
- birth control — Birth control means planning whether to have children, and using contraception to prevent having them when they are not wanted.
- black hickory — a species of smooth-barked hickory, Carya tomentosa, with fragrant foliage that turns bright yellow in autumn
- blue rockfish — a bluish-black rockfish, Sebastodes mystinus, inhabiting Pacific coastal waters of North America.
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- bone-crushing — powerful or constricting enough to crush one's bones: a bone-crushing handshake.
- bosch process — an industrial process for manufacturing hydrogen by the catalytic reduction of steam with carbon monoxide
- box stretcher — a heavy rectangular stretcher connecting successive legs of a table, chair, etc.
- brachiosaurus — a dinosaur of the genus Brachiosaurus, up to 30 metres long: the largest land animal ever known
- brachypterous — having very short or incompletely developed wings