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Michaelmas daisy

noun
  1. an aster.

Origin of Michaelmas daisy

First recorded in 1775–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for michaelmas daisy

Michaelmas daisy

noun
  1. British any of various plants of the genus Aster that have small autumn-blooming purple, pink, or white flowers: family Asteraceae (composites)
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