Definitions

from The Century Dictionary.

  • noun In botany, same as proterandry.
  • noun In zoology, the condition of the reproductive organs in hermaphroditic animals, characterized by the production of ripe spermatozoa before the ova are mature or capable of being fertilized: an arrangement which insures cross-fertilization between different individuals, as in certain hermaphroditic worms, crustaceans, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology The condition in which an organism begins life as a male and then changes into a female.
  • noun botany The condition of flowers whose male parts mature before the female ones.

Etymologies

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