pipecuronium in English dictionary pipecuronium Meanings and definitions of "pipecuronium" A muscle relaxant that acts as a nicotinic acetylcholine receptor antagonist. noun A muscle relaxant that acts as a nicotinic acetylcholine receptor antagonist. more Grammar and declension of pipecuronium pipecuronium ( uncountable) pipecuronium (uncountable) more Sample sentences with "pipecuronium" Declension Stem Try again Available translations French Spanish Authors