• synonyms


[ey-pet-l-uh s]
adjective Botany.
  1. having no petals.
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Origin of apetalous

From the New Latin word apetalus, dating back to 1700–10. See a-6, petalous
Related formsa·pet·a·lous·ness, a·pet·a·ly, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for apetalous

Historical Examples of apetalous

  • Thus, certain species of Helianthemum are apetalous in Lapland.

    Vegetable Teratology

    Maxwell T. Masters

  • Our genera are apetalous and with the calyx free from the ovary.

  • Apetalous, a botanical term applied to flowers or flowering-plants which are destitute of petals or corolla.

  • Stackhousia juncea, according to Clarke, has mixed with its perfect flowers a number of apetalous blossoms destitute of anthers.

    Vegetable Teratology

    Maxwell T. Masters

  • Apetalous Trees or Shrubs, having their flowers destitute of corolla; as the box.

British Dictionary definitions for apetalous


  1. (of flowering plants) having no petals
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Derived Formsapetaly, noun

Word Origin for apetalous

C18: from New Latin apetalus, see a- 1, petal
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