limelight

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limelight:

see calcium oxidecalcium oxide,
chemical compound, CaO, a colorless, cubic crystalline or white amorphous substance. It is also called lime, quicklime, or caustic lime, but commercial lime often contains impurities, e.g., silica, iron, alumina, and magnesia.
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limelight

[′līm‚līt]
(engineering)
A light source once used in spotlights; it consisted of a block of lime heated to incandescence by means of an oxyhydrogen flame torch.

limelight

a. a type of lamp, formerly used in stage lighting, in which light is produced by heating lime to white heat
b. brilliant white light produced in this way
References in periodicals archive ?
Swain has made a Faustian bargain that includes self-mutilation and drug trafficking to prolong his time in front of the calcium lights.
Large calcium lights set up along Executive Avenue made the scene "as light as day," according to the Chicago Tribune.
To reach the cottage from the resort, a mile-long spur was built overnight using 300 volunteer railroad builders and calcium lights.