15-letter words containing o, r
- cassette memory — a removable magnetic tape cartridge that stores data and programs.
- cast around for — If you cast around for something or cast about for it, you try to find it or think of it.
- cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- cast-iron plant — any of several plants belonging to the genus Aspidistra, of the lily family, native to eastern Asia, especially A. eliator, having large evergreen leaves often striped with white, and grown as a houseplant.
- castanospermine — a substance obtained from the Australian chestnut or black bean tree
- casters-up mode — [IBM, probably from slang belly up] Yet another synonym for "broken" or "down". Usually connotes a major failure. A system (hardware or software) which is "down" may be already being restarted before the failure is noticed, whereas one which is "casters up" is usually a good excuse to take the rest of the day off (as long as you're not responsible for fixing it).
- castner process — a process for extracting sodium from sodium hydroxide, devised by Hamilton Young Castner (1858–98)
- castrametations — Plural form of castrametation.
- casual labourer — a person who is employed on a temporary, rather than a permanent or regular basis
- catastrophising — Present participle of catastrophise.
- catastrophizing — Present participle of catastrophize.
- catch (on) fire — to begin burning; ignite
- catchment board — a public body concerned with the conservation and organization of water supply from a catchment area
- categoricalness — The quality of being categorical, positive, or absolute.
- categorisations — Plural form of categorisation.
- categorizations — Plural form of categorization.
- category killer — a person, product, or business that dominates a particular market
- cathedral choir — the choir, traditionally consisting of boys and men, that sings in cathedral services
- catheterisation — Alternative spelling of catheterization.
- catheterization — to introduce a catheter into.
- catholic church — any of several Churches claiming to have maintained continuity with the ancient and undivided Church
- cauliflower ear — permanent swelling and distortion of the external ear as the result of ruptures of the blood vessels: usually caused by blows received in boxing
- cauliflowerette — a single floret from the head of a cauliflower.
- cavalry officer — an officer in a cavalry regiment
- cell disruption — Cell disruption is when a biological material becomes smaller to release proteins and enzymes.
- central locking — a system by which all the doors of a motor vehicle can be locked simultaneously when the driver's door is locked
- centrifugal box — a revolving chamber, used in the spinning of manufactured filaments, in which the plastic fibers, subjected to centrifugal force, are slightly twisted and emerge in the form of yarn wound into the shape of a hollow cylinder.
- centrosymmetric — having symmetry with a central point
- cephalochordate — any chordate animal of the subphylum Cephalochordata, having a fishlike body and no vertebral column; lancelet
- cephalothoracic — the anterior part of the body in certain arachnids and crustaceans, consisting of the coalesced head and thorax.
- cephalothoraxes — Plural form of cephalothorax.
- cerebral cortex — the outermost layer of the cerebrum that is the locus of higher brain processes
- cerebrovascular — of or relating to the blood vessels and the blood supply of the brain
- ceremoniousness — The state of being ceremonious.
- chairpersonship — a person who presides over a meeting, committee, board, etc.
- chamber concert — a concert of chamber music
- chamber counsel — a counsel who advises in private and does not plead in court
- chamois leather — soft cleaning cloth
- chandler period — the period of the oscillation (Chandler wobble) of the earth's axis, varying between 416 and 433 days.
- chandler wobble — a slight, irregular nutation of the earth's rotational axis with a period of c. 428 days
- change of heart — a profound change of outlook, opinion, etc
- chanson d'amour — love song.
- character actor — A character actor is an actor who specializes in playing unusual or eccentric people.
- charcoal burner — (formerly) a person whose work was making charcoal by burning
- charcoal-burner — a device that burns charcoal, as a stove or brazier.
- charles coulomb — Charles Augustin de [sharl oh-gy-stan duh] /ʃarl oʊ güˈstɛ̃ də/ (Show IPA), 1736–1806, French physicist and inventor.
- charles doughty — Charles Montagu [mon-tuh-gyoo] /ˈmɒn təˌgyu/ (Show IPA), 1843–1926, English traveler and writer.
- charles simonyi — (person) Microsoft programmer, most famously responsible for Hungarian Notation. Simonyi was born in Budapest in 1948, and for more than a decade was senior programmer at Microsoft in Redmond.
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- charlotte russe — a cold dessert made in a mould with sponge fingers enclosing a mixture of whipped cream, custard, etc