buttercup n 1: any of various plants of the genus Ranunculus [syn: {buttercup}, {butterflower}, {butter-flower}, {crowfoot}, {goldcup}, {kingcup}]
Cuckoobud \Cuck"oo*bud"\ (k??k"??-b?d`), n. (Bot.) A species of {Ranunculus} ({Ranunculus bulbosus}); -- called also {butterflower}, {buttercup}, {kingcup}, {goldcup}. --Shak. [1913 Webster]
Buttercup \But"ter*cup`\, n. (Bot.) A plant of the genus {Ranunculus}, or crowfoot, particularly {Ranunculus bulbosus}, with bright yellow flowers; -- called also {butterflower}, {golden cup}, and {kingcup}. It is the {cuckoobud} of Shakespeare. [1913 Webster]