methylmercury(redirected from Fetal methyl mercury syndrome)
Also found in: Medical.
(Chemistry) any of various highly toxic organic compounds of mercury that contain the complex CH3Hg-
meth•yl•mer•cu•ry(ˌmɛθ əlˈmɜr kyə ri)
any of several extremely toxic organometallic compounds, Hg(CH3)2, formed from metallic mercury by the action of microorganisms and capable of entering the food chain: used as seed disinfectants.