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[koo-luh nt] /ˈku lənt/

a substance, usually a liquid or a gas, used to reduce the temperature of a system below a specified value by conducting away the heat produced in the operation of the system, as the liquid in an automobile system or the fluid that removes heat from the core of a nuclear reactor.
a lubricant that dissipates the heat caused by friction.
a fluid used to cool a system or to transfer heat from one part of it to another
a liquid, such as an emulsion of oil, water, and soft soap, used to lubricate and cool the workpiece and cutting tool during machining

“radiator fluid,” 1930, from cool (adj.) + -ant.


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    [kuh n-vek-soh-kon-keyv] /kənˈvɛk soʊ kɒnˈkeɪv/ adjective 1. . 2. Optics. pertaining to or noting a lens in which the convex face has a greater degree of curvature than the face. /kənˌvɛksəʊkɒnˈkeɪv/ adjective 1. having one side convex and the other side concave 2. (of a lens) having a convex face with greater curvature than the […]

  • Convexo-

    1. a combining form representing convex, in compound words: convexo-concave.

  • Convexly

    [adjective kon-veks, kuh n-; noun kon-veks] /adjective kɒnˈvɛks, kən-; noun ˈkɒn vɛks/ adjective 1. having a surface that is curved or rounded outward. Compare (def 1). 2. Mathematics. noun 3. a convex surface, part, or thing. /ˈkɒnvɛks; kɒnˈvɛks/ adjective 1. curving or bulging outwards 2. (physics) having one or two surfaces curved or ground in […]

  • Convex lens

    convex lens n. A lens having at least one surface that curves outward like the exterior of a sphere.

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