fulminating mercury fulminating mercury /ˈfʊlmɪˌneɪtɪŋ ˈmɝkjuri/

noun

1. A fulminate that when dry explodes violently if struck or heated; used in detonators and blasting caps and percussion caps  ( fulminate of mercury , fulminating mercury , mercury fulminate )
   a fulminate that when dry explodes violently if struck or heated; used in detonators and blasting caps and percussion caps