betalight

Etymology

From beta + light.

betalight means A sealed capsule, internally coated with a phosphor and filled with a tritium whose beta decay causes the phosphor to glow. Lexicurio rates it Sui generis — a strength score of 93 out of 100.

noun

A sealed capsule, internally coated with a phosphor and filled with a tritium whose beta decay causes the phosphor to glow.