any of various common buttercups, as Ranunculus bulbosus, having bright-yellow flowers.
Chiefly British. the marsh marigold.
Origin of kingcup
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British any of several yellow-flowered ranunculaceous plants, esp the marsh marigold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012