pollen

[ pol-uhn ]

noun

1. the fertilizing element of flowering plants, consisting of fine, powdery, yellowish grains or spores, sometimes in masses.

verb (used with object)

1. to pollinate.

pollen

¹

/ pəˈlɪnɪk; ˈpɒlən /

noun

1. a fine powdery substance produced by the anthers of seed-bearing plants, consisting of numerous fine grains containing the male gametes

Pollen

²

/ ˈpɒlən /

noun

1. PollenDaniel18131896MNew ZealandIrishPOLITICS: statesmanPOLITICS: prime minister Daniel. 1813–96, New Zealand statesman, born in Ireland: prime minister of New Zealand (1876)

pollen

/ pŏl′ən /

1. Powdery grains that contain the male reproductive cells of most plants. In gymnosperms, pollen is produced by male cones or conelike structures. In angiosperms, pollen is produced by the anthers at the end of stamens in flowers. Each pollen grain contains a generative cell, which divides into two nuclei (one of which fertilizes the egg), and a tube cell, which grows into a pollen tube to conduct the generative cell or the nuclei into the ovule. The pollen grain is the male gametophyte generation of seed-bearing plants. In gymnosperms, each pollen grain also contains two sterile cells (called prothallial cells), thought to be remnants of the vegetative tissue of the male gametophyte.

pollen

1. The male sex cells in plants. In flowering plants, pollen is produced in thin filaments in the flower called stamens . ( See fertilization and pollination .)

Notes

When pollen is carried into the air by the wind, it frequently causes allergic reactions ( see allergy ) in humans.

Derived Forms

• pollinic, adjective

Other Words From

• pollen·less adjective
• pollen·like adjective
• pol·lin·ic [p, uh, -, lin, -ik], pol·lini·cal adjective
• un·pollened adjective

Word History and Origins

Origin of pollen¹

1515–25; < New Latin, special use of Latin: fine flour, mill dust

Word History and Origins

Origin of pollen¹

C16: from Latin: powder; compare Greek palē pollen

Example Sentences

They are essential to ecosystems, and we use them for everything from seeds to oil to pollen to decoration.

From Los Angeles Times

The bees even demand, “Give us your pollen.”

From Los Angeles Times

"This suggests that what we are seeing is an effect of weather on the flowering plants that bees depend on for pollen and nectar, and this in turn affects the bees."

From Science Daily

Scientists at Duke-NUS Medical School have identified how the first domino falls after a person encounters an allergen, such as peanuts, shellfish, pollen or dust mites.

From Science Daily

Plants provide energy and nutrition, mostly in the form of nectar and pollen, while the visiting pollinators distribute the plants’ genes.

From Seattle Times

Related Words

• antigen
• dander
• irritant
• ragweed