(informal) Initialism of silent but deadly (fart): inaudible but extremely odorous flatulence

simple past tense and past participle of embrangle

(organic chemistry) The tropone 3,8-dimethyl-5-isopropyl-2,3-dihydro-1H-azulene-1,6-dione present in Croton argyroglossum

Lack of aggression.