[ an-thee-sis ]
/ ænˈθi sɪs /

noun, plural an·the·ses [an-thee-seez] /ænˈθi siz/. Botany.

the period or act of expansion in flowers, especially the maturing of the stamens.

Origin of anthesis

1825–35; < New Latin < Greek ánthēsis bloom, equivalent to anthē- (verbid stem of antheîn to bloom) + -sis -sis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for anthesis

British Dictionary definitions for anthesis


/ (ænˈθiːsɪs) /


the time when a flower becomes sexually functional

Word Origin for anthesis

C19: via New Latin from Greek: full bloom, from anthein to bloom, from anthos flower
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

Science definitions for anthesis


[ ăn-thēsĭs ]

The period during which a flower is fully open and functional. Also called efflorescence
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.