PARAOXON

|parə|äkˌsän noun

( -s )

Etymology: para- (I) + ox- + -on

: a phosphate ester (C 2 H 5 O) 2 PO(OC 6 H 4 NO 2 ) that is formed from parathion in the body and that is a potent anticholinesterase; O,O -diethyl O-para -nitro-phenyl phosphate