referendum
ref.er.en.dum \.ref-*-'ren-d*m\ \-d*\ n or ref.er.en.da or referendums [NL, fr. L, neut. of refendus, gerundive of referre to refer] pl 1a: the principle or practice of submitting to popular vote a measure passe d upon or proposed by a legislative body or by popular initiative 1b: a vote on a measure so submitted 2: a diplomatic agent's note asking his government for instructions