(astronomy) The sudden beginning of the burning of helium in the core of stars of intermediate mass or on the surface of an accreting white dwarf.

plural of flash drive

(US) A sudden, but brief, sensation of heat over the entire body; a common symptom of menopause.

plural of flash flood

(meteorology) A sudden, rapid flood, usually of short duration and local impact.

(of paint used on an aircraft) Intended to reflect the thermal radiation from a nuclear detonation.

Alternative form of flashcard

plural of flash card

plural of flash mob

Alternative spelling of newsflash