15-letter words containing o, r, k
- central locking — a system by which all the doors of a motor vehicle can be locked simultaneously when the driver's door is locked
- charleston peak — a mountain in SE Nevada: highest peak in the Spring Mountains. 11,919 feet (3635 meters).
- check protector — checkwriter.
- chicken cholera — fowl cholera.
- chicken lobster — a young lobster weighing 1 pound (0.4 kg) or less.
- chondroskeleton — the cartilaginous part of the skeleton of vertebrates
- choral speaking — recitation of poetry, dramatic pieces, etc. by a chorus of speakers
- chudskoye ozero — Russian name of Peipus.
- cigarette smoke — the acrid smoke produced by cigarettes being smoked
- cinderella book — (publication) "Introduction to Automata Theory, Languages, and Computation", by John Hopcroft and Jeffrey Ullman, (Addison-Wesley, 1979). So called because the cover depicts a girl (putatively Cinderella) sitting in front of a Rube Goldberg device and holding a rope coming out of it. On the back cover, the device is in shambles after she has (inevitably) pulled on the rope. See also book titles.
- cloak-and-sword — (of a drama or work of fiction) dealing with characters who wear cloaks and swords; concerned with the customs and romance of the nobility in bygone times.
- clock frequency — clock rate
- cockfight chair — a chair designed to be sat on backward, having a bell seat and a crest rail that serves as an armrest.
- cocktail shaker — a container in which cocktails are mixed
- collected works — the works of a particular writer brought together into one volume or a set of volumes
- collective mark — a trademark or service mark used by the members of a cooperative, a union, or other collective association to identify themselves as members.
- comfort blanket — a blanket that a young child is very attached to
- commercial bank — a bank primarily concerned with accepting demand deposits, used as checking accounts
- computer cookie — HTTP cookie
- conjuring trick — A conjuring trick is a trick in which something is made to appear or disappear as if by magic.
- consumer market — the market of consumers for a particular good or service
- consumer strike — a boycott of a product by consumers, often in protest over a raise in its price.
- contact breaker — a switching device used in the distributor of an internal-combustion engine which controls the timing of the spark that ignites the spark plug
- contraclockwise — Counterclockwise.
- contract killer — a person hired to commit a murder
- cooktown orchid — a purple Australian orchid, Dendrobium bigibbum, found in Queensland, of which it is the floral emblem
- copyright block — a block of four or more U.S. stamps that includes, in the selvage of the sheet, the copyright mark of the U.S. Postal Service.
- corkscrew curls — locks of hair curled to hang in a spiral shape
- corkscrew grass — a variety of spear grass, Austrostipa scabra, native to Australia, having very fine foliage, an erect seed head, and awns that twist up the seed head: family Poaceae
- coromandel work — lacquer work popular in England c1700 and marked by an incised design filled in with gold and color.
- counter-sinking — to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt, etc.
- counterattacked — Simple past tense and past participle of counterattack.
- counterattacker — a person who counter-attacks
- counterblockade — a retaliatory blockade
- counterchecking — Present participle of countercheck.
- countersink bit — a tool for countersinking
- country bumpkin — an awkward, simple, rustic person
- country kitchen — a large kitchen with ample areas for food preparation and eating.
- coxsackie virus — any of various viruses that occur in the intestinal tract of man and cause diseases, some of which resemble poliomyelitis
- crack down (on) — to become strict or stricter (with)
- crackback block — a block in which a player, usually a wide receiver, angles back sharply towards the middle of the field and blocks a defensive player from the side
- cracked gas oil — Cracked gas oil is a gas oil which is formed as one of the products of a gas reaction.
- csk corporation — (company) The japanese company that owns CSK Software and Sega. CSK Corp. is the largest independent japanese software company.
- culture-shocked — a state of bewilderment and distress experienced by an individual who is suddenly exposed to a new, strange, or foreign social and cultural environment.
- dark adaptation — the adaptation of the eye to vision in the dark by dilation of the pupil, increased sensitivity of the retina, etc.
- dark-eyed junco — a common North American junco, Junco hyemalis, having a pink bill, gray and brown body plumage, white belly and outer tail feathers, and differing from other species of junco in having a dark brown rather than yellow iris.
- debenture stock — stock that pays a fixed rate of interest at fixed intervals
- demolition work — the work of knocking down buildings
- desktop manager — A user interface to system services, usually icon and menu based like the Macintosh Finder, enabling the user to run application programs and use a file system without directly using the command language of the operating system.
- discount broker — an agent who discounts commercial paper.