con·stan·tan (k n st n-t n )n. An alloy of 45 percent nickel and 55 percent copper, used chiefly in electrical instruments because of its constant resistance under variations of temperature. [From constant.] |
constantan [ˈkɒnstənˌtæn]
n
(Engineering / Metallurgy) an alloy of copper (60 per cent) and nickel (40 per cent). It has a high resistivity that does not vary significantly with temperature and is used in resistors and, with copper, in thermocouples
[formed from constant]
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  constantan - an alloy of copper and nickel with high electrical resistance and a low temperature coefficient; used as resistance wirecopper-base alloy - any alloy whose principal component is copper |
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