18-letter words containing r, u, t, l
- butterhead lettuce — a major group of lettuce varieties having soft, pliable leaves and small, loose heads, including bibb and Boston lettuce
- calcium propionate — a white, water-soluble powder, CaC 6 H 10 O 4 , used in bakery products to inhibit the growth of fungi.
- california current — a cold current originating in the northern part of the Pacific Ocean, flowing SE along the coast of W North America.
- cartilaginous fish — any fish of the class Chondrichthyes, including the sharks, skates, and rays, having a skeleton composed entirely of cartilage
- casualty insurance — insurance providing coverage against accident and property damages, as automobile, theft, liability, and explosion insurance, but not including life insurance, fire insurance, or marine insurance.
- catalogue raisonne — a descriptive catalogue, esp one covering works of art in an exhibition or collection
- 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
- cellular automaton — (algorithm, parallel) (CA, plural "- automata") A regular spatial lattice of "cells", each of which can have any one of a finite number of states. The state of all cells in the lattice are updated simultaneously and the state of the entire lattice advances in discrete time steps. The state of each cell in the lattice is updated according to a local rule which may depend on the state of the cell and its neighbors at the previous time step. Each cell in a cellular automaton could be considered to be a finite state machine which takes its neighbours' states as input and outputs its own state. The best known example is J.H. Conway's game of Life.
- cellular telephone — a mobile phone
- 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
- chambered nautilus — nautilus (def 1).
- character-building — improving certain good or useful traits in a person's character, esp self-reliance, endurance, and courage
- chinese revolution — the overthrow of the last Manchu emperor and the establishment of a republic in China (1911–12)
- chocolate-coloured — dark brown
- church of scotland — the established church in Scotland, Calvinist in doctrine and Presbyterian in constitution
- cicatricial tissue — scar tissue.
- circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
- circulating medium — currency serving as a medium of exchange
- circulatory system — the system concerned with the transport of blood and lymph, consisting of the heart, blood vessels, lymph vessels, etc
- circumnavigational — Relating to circumnavigation.
- citizen journalism — the involvement of non-professionals in reporting news, esp in blogs and other websites
- clark's nutcracker — a nutcracker, Nucifraga columbiana, of western North America, having pale gray plumage and black and white wings and tail.
- claustrophobically — In a claustrophobic way.
- colour commentator — a sports celebrity who works as part of a commentary team
- colour photography — the art or process of taking and developing photographs in colour
- colour temperature — the temperature of a black-body radiator at which it would emit radiation of the same chromaticity as the light under consideration
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- computer telephony — Computer Telephone Integration
- conceptual realism — the doctrine that universals have real and independent existence.
- concrete universal — a principle that necessarily has universal import but is also concrete by virtue of its arising in historical situations.
- cornell university — (body, education) A US Ivy League University founded in 1868 by businessman Ezra Cornell and respected scholar Andrew Dickson White. Cornell includes thirteen colleges and schools. On the Ithaca campus are the seven undergraduate units and four graduate and professional units. The Medical College and the Graduate School of Medical Sciences are in New York City. Cornell has 13,300 undergraduates and 6,200 graduate and professional students. See also Concurrent ML, Cornell Theory Center, Cornell University Programming Language, CU-SeeMe, ISIS.
- corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
- couldn't care less — If you say that you couldn't care less about someone or something, you are emphasizing that you are not interested in them or worried about them. In American English, you can also say that you could care less, with the same meaning.
- counter-revolution — A counter-revolution is a revolution that is intended to reverse the effects of a previous revolution.
- counterculturalism — The counterculture movement or lifestyle.
- counterculturalist — the culture and lifestyle of those people, especially among the young, who reject or oppose the dominant values and behavior of society.
- countercyclicality — The quality of being countercyclical.
- counterintuitively — In a manner contrary to intuition or common sense.
- counterrevolutions — Plural form of counterrevolution.
- coupling capacitor — A coupling capacitor is a capacitor that is used to transmit an alternating current signal from one node to another.
- critical apparatus — the variant readings, footnotes, etc found in a scholarly work or a critical edition of a text
- crude oil desalter — A crude oil desalter is equipment which removes inorganic salts from crude oil, using chemical or electrostatic separation.
- crude oil fraction — A crude oil fraction is a component of crude oil, which has its own particular molecular composition, weight, and boiling point.
- cultural awareness — Someone's cultural awareness is their understanding of the differences between themselves and people from other countries or other backgrounds, especially differences in attitudes and values.
- cultural diffusion — act of diffusing; state of being diffused.
- cultural diversity — the cultural variety and cultural differences that exist in the world, a society, or an institution: Dying languages and urbanization are threats to cultural diversity.
- cultural pluralism — a condition in which minority groups participate fully in the dominant society, yet maintain their cultural differences.
- cultural sociology — the study of the origins and development of societal institutions, norms, and practices.
- cultural universal — a cultural pattern extant in every known society.
- cumberland plateau — division of the W Appalachians, extending from S W.Va. to N Ala.