18-letter words containing c, h, r
- benchmark position — a public service job used for comparison with a similar position, such as a position in commerce, for wage settlements
- bevel-faced hammer — a riveting hammer having an oblique face.
- bichromate process — any of several methods of photography in which the light-sensitive medium is alkaline bichromate associated with a colloid such as gum, albumen, or gelatin.
- biological therapy — biotherapy
- bird's-nest orchid — a brown parasitic Eurasian orchid, Neottia nidus-avis, whose thick fleshy roots resemble a bird's nest and contain a fungus on which the orchid feeds
- birth control pill — an oral contraceptive for women, containing the hormones estrogen and progesterone or progesterone alone, that inhibits ovulation, fertilization, or implantation of a fertilized ovum, causing temporary infertility.
- birth-control pill — an oral contraceptive for women, containing the hormones estrogen and progesterone or progesterone alone, that inhibits ovulation, fertilization, or implantation of a fertilized ovum, causing temporary infertility.
- branch instruction — a machine-language or assembly-language instruction that causes the computer to branch to another instruction
- branch to fishkill — (IBM: from the location of one of the corporation's facilities) Any unexpected jump in a program that produces catastrophic or just plain weird results. See jump off into never-never land, hyperspace.
- branching fraction — (in branching) the proportion of the disintegrating nuclei that follow a particular branch to the total number of disintegrating nuclides
- breach of contract — the act of breaking the conditions of a contract
- breach of security — an act that violates a country, area, or building's security measures
- breast enhancement — a surgical procedure to increase the size of a woman's breasts
- breathing exercise — an exercise intended to promote effective and healthy breathing and breath control
- brightness control — a control that enables the brightness of the image on a television screen, computer monitor, etc to be adjusted
- broadcasting house — any of a number of buildings in the UK from which the BBC broadcasts or has broadcast
- bromochloromethane — chlorobromomethane.
- bronchocandidiasis — See under candidiasis.
- bullnose stretcher — bull stretcher (def 1).
- bullnose-stretcher — Also called bullnose stretcher. a brick having one of the edges along its length rounded for laying as a stretcher in a sill or the like.
- butterhead lettuce — a major group of lettuce varieties having soft, pliable leaves and small, loose heads, including bibb and Boston lettuce
- california fuchsia — a North American onagraceous plant, Zauschneria californica, with tubular scarlet flowers
- california-fuchsia — a plant belonging to the genus Fuchsia, of the evening primrose family, including many varieties cultivated for their handsome drooping flowers.
- call to the colors — call or order to serve in the armed forces
- camel's-hair brush — an artist's small brush, made of hair from a squirrel's tail
- camembert (cheese) — a soft, rich, creamy partly ripened cheese
- carbonic anhydrase — an enzyme in blood cells that catalyses the decomposition of carbonic acid into carbon dioxide and water, facilitating the transport of carbon dioxide from the tissues to the lungs
- carbonic-anhydride — carbon dioxide.
- carboxyhaemoglobin — haemoglobin coordinated with carbon monoxide, formed as a result of carbon monoxide poisoning. As carbon monoxide is bound in preference to oxygen, tissues are deprived of oxygen
- carolina chickadee — a chickadee, Parus carolinensis, of the southeastern U.S., resembling but smaller than the black-capped chickadee.
- carpenterworm moth — any moth of the family Cossidae, as Prionoxystus robiniae of the U.S. and southern Canada, whose larvae bore into the trunks and branches of oaks, locusts, and other trees.
- carthaginian peace — the treaty by which Rome reduced Carthage to the status of a puppet state in 201 b.c.
- cartilaginous fish — any fish of the class Chondrichthyes, including the sharks, skates, and rays, having a skeleton composed entirely of cartilage
- cash-for-questions — of, involved in, or relating to a scandal in which some MPs were accused of accepting bribes to ask particular questions in Parliament
- cassiopeia's chair — the five brightest stars in the constellation Cassiopeia that seem to form the shape of a W or M
- catastrophe theory — a mathematical theory that classifies surfaces according to their form
- catch one's breath — When you catch your breath while you are doing something energetic, you stop for a short time so that you can start breathing normally again.
- catcher in the rye — a novel (1951) by J. D. Salinger.
- caterpillar hunter — any of various carabid beetles of the genus Calosoma, of Europe and North America, which prey on the larvae of moths and butterflies
- catherine of siena — Saint. 1347–80, Italian mystic and ascetic; patron saint of the Dominican order. Feast day: April 29
- cathode dark space — Crookes dark space.
- cauliflower cheese — a dish of cauliflower with a cheese sauce, eaten hot
- cellular telephone — a mobile phone
- centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
- centrifugal clutch — an automatic clutch in which the friction surfaces are engaged by weighted levers acting under centrifugal force at a certain speed of rotation
- cepheid (variable) — any of a class of pulsating, yellow, supergiant stars whose brightness varies in regular periods: from the period-luminosity relation, the distance of such a star can be determined
- chagos archipelago — group of islands in the Indian Ocean 1,180 mi (1,899 km) northeast of Mauritius, comprising the British Indian Ocean Territory: chief island, Diego Garcia
- chamber of horrors — a room, for example in a waxworks, containing objects, images or representations of people or scenes that are believed likely to frighten or horrify visitors
- chambered nautilus — nautilus (def 1).
- chandelier earring — one of a pair of long and ornate earrings that dangle from the earlobes, usually dropping from more than one level.