[ per-ee-anth ]
/ ˈpɛr iˌænθ /

noun Botany.

the envelope of a flower, whether calyx or corolla or both.

Nearby words

  1. peri-infarction block,
  2. periadenitis,
  3. periadenitis mucosa necrotica recurrens,
  4. periander,
  5. periangiitis,
  6. periaortitis,
  7. periapical,
  8. periapical cemental dysplasia,
  9. periapical curettage,
  10. periapical granuloma

Origin of perianth

1700–10; earlier perianthium < New Latin. See peri-, anth-, -ium

Related formsper·i·an·thi·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for perianth

British Dictionary definitions for perianth


/ (ˈpɛrɪˌænθ) /


the outer part of a flower, consisting of the calyx and corolla

Word Origin for perianth

C18: from French périanthe, from New Latin, from peri- + Greek 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

Word Origin and History for perianth



"envelope of a flower," 1706, from French périanthe, from Modern Latin perianthium (17c.), literally "that which is round the flower," from peri- (see peri-) + Greek anthos "flower" (see anther).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for perianth


[ pĕrē-ănth′ ]

The sepals and petals of a flower considered together.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.