1760 as a botanical term for the fertilizing element of flowers (from Linnæus, 1751), earlier "fine flour" (1520s), from Latin pollen "mill dust; fine flour," related to polenta "peeled barley," and pulvis (genitive pulveris) "dust," from PIE root *pel- (1) "dust; flour" (cf. Greek poltos "pap, porridge," Sanskrit pálalam "ground seeds," Lithuanian pelenai, Old Church Slavonic popelu, Russian pépelŭ "ashes").
pollen pol·len (pŏl'ən)
n.
Microspores of seed plants carried by wind or insects prior to fertilization.
The male sex cells in plants. In flowering plants, pollen is produced in thin filaments in the flower called stamens. (See fertilization and pollination.)
Note: When pollen is carried into the air by the wind, it frequently causes allergic reactions (see allergy) in humans.