any of several naturalized Eurasian plants of the genus Centaurea, especially C. calcitrapa, having purplish, spiny flower heads.
Words nearby star thistle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for star thistle
any of several plants of the genus Centaurea, esp C. calcitrapa, of Eurasia, which has spiny purplish flower heads: family Asteraceae (composites)See also centaury (def. 2)
Word Origin for star thistle
C16: so called because it has a thistle-shaped flower surrounded by radiating spines
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