| pollen | a fine powder produced by the anthers of seed-bearing plants |
|---|---|
| pollen | the number of pollen grains (usually ragweed) in a standard volume of air over a twenty-four hour period and a specified time and place |
| pollen | slender tubular outgrown from a pollen grain that penetrates the ovule and releases male gametes |
| pollen | fertilize by transfering pollen |
| pollen | transfer of pollen from the anther to the stigma of a plant |