(civil engineering) undesirably rapid setting of cement in concrete
- Flash smelting
noun 1. a smelting process for sulphur-containing ores in which the dried and powdered ore, mixed with oxygen, is ignited on discharge from a nozzle, melts, and drops to the bottom of a settling chamber. Sulphur is released mainly in its solid form, thus reducing atmospheric pollution
noun, Astronomy. 1. the emission spectrum of the chromosphere of the sun, which dominates the solar spectrum in the seconds just before and after a total solar eclipse.
- Flash-to-bang time
noun the time from light being first observed until the sound of the nuclear detonation is heard
[flash-toob, -tyoob] /ˈflæʃˌtub, -ˌtyub/ noun, Photography. 1. .