Pronunciation: ˌ me-th ə l- ' m ə r-ky ə -r ē , - ' m ə r-k( ə -)r ē
Function: noun
Date: 1915
: any of various toxic compounds of mercury containing the complex CH 3 Hg – that often occur as pollutants which accumulate in living organisms (as fish) especially in higher levels of a food chain