the fine powder (usually yellow) formed on flowers, which fertilizes other flowers when carried to them by the wind, insects etc
irritant
Cases of word usage
1) to carry pollen from one plant to another (plant) (crossfertilize)
2) to fertilize (a plant) by using pollen (pollinate)
3) the male part of a flower, bearing pollen (stamen)
4) a mark of shame or disgrace; the part of a flower that receives pollen (stigma)