four-leaf clover

[fawr-leef, fohr-]

noun

a clover leaf having four leaflets instead of the usual three, purported to bring good luck.

Origin of four-leaf clover

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for four-leaf clover

four-leaf clover

four-leaved clover

noun

a clover with four leaves rather than three, supposed to bring good luck
another name for cloverleaf (def. 1)
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