pollen

American  

[pol-uhn] / ˈpɒl ən /

noun

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

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verb (used with object)

1. to pollinate.

pollen ¹ British  

/ 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

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Pollen ² British  

/ ˈpɒlən /

noun

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

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pollen Scientific  

/ 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.

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pollen Cultural  

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.)

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Discover More

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

Other Word Forms

• pollenless adjective
• pollenlike adjective
• pollinic adjective
• pollinical adjective
• unpollened adjective

Etymology

Origin of pollen

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

Example Sentences

Some are large enough to see, such as springtime pollen, while others, like viruses that circulate during flu season, are far too small for the human eye.

From Science Daily

Oatmeal, the once-humble slop of Puritans and heart-healthy dads, now served in ribbed ceramic bowls under a snowfall of hemp hearts and bee pollen.

From Salon

The "highly distinctive, prominent horns" are only on the female bee and may be used as a defence mechanism, to gather pollen or nectar, or to collect materials such as resin for nests.

From BBC

Enthusiasts must carefully manage the breeding process, manually transferring pollen from male flowers over to female ones, and the growth.

From The Wall Street Journal

Other studies have shown that bees use static forces to gather pollen, flower mites cling to hummingbirds using electrostatic attraction, and ballooning spiders rely on charged silk to drift across long distances.

From Science Daily

Related Words

• antigen
• dander
• irritant
• ragweed