pollen is a topic covered in the Taber's Medical Dictionary.

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(pol′ĕn )

[L. pollen, fine flour]
The microspores of a seed plant that develop in the anther at the tip of the stamen. Each pollen grain develops a pollen tube and constitutes the male gametophyte. Within it develops a tube nucleus and two sperm nuclei, which are the male reproductive cells. Many airborne pollens are allergens.
SEE: hay fever

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