(inorganic chemistry) A polymeric organomercury compound, (7,11-dimercurio-1,5,9-trioxa-2,4,6,8,10,12-hexamercuracyclododec-3-yl)mercury;trihydrate, that functions as a catalyst in ethoxylation rea...

Extreme transparence

comparative form of subtile: more subtile

(chess) A move in which a pawn captures an opposing pawn on the same rank immediately after the latter has moved forward two squares on its first move in the game, as if it had moved forward only o...