• WordNet 3.6
    • n anthesis the time and process of budding and unfolding of blossoms
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Webster's Revised Unabridged Dictionary
    • n Anthesis (Bot) The period or state of full expansion in a flower.
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Century Dictionary and Cyclopedia
    • n anthesis The period or act of expansion in flowers.
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Webster's Revised Unabridged Dictionary
Gr. bloom, fr. 'anqei^n to bloom, 'a`nqos flower


In literature:

These swellings help to spread out the branches especially at the time of anthesis.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar