fine powder produced by flowers that fertilizes other plants for reproduction
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Pollen Definition from Arts & Humanities Dictionaries & Glossaries
N
finely ground flour; powder (of anything produced by grinding)
finely ground flour; powder (of anything produced by grinding)
fine flour, fine meal. (also pollis ).
fine flour, fine meal
Pollen Definition from Language, Idioms & Slang Dictionaries & Glossaries
(n.)
The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.
The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.
(n.)
Fine bran or flour.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. AboutFine bran or flour.
pollen
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pollen
\pol"len\ (?), n. [l. pollen fine flour, fine dust; cf. gr. &?;]
1. fine bran or flour. [obs.]
2. (bot.) the fecundating dustlike cells of the anthers of flowers. see flower, and illust. of filament.
pollen
grain (bot.), a particle or call of pollen.
pollen
mass, a pollinium.
pollen
sac, a compartment of an anther containing pollen, -- usually there are four in each anther.
pollen
tube, a slender tube which issues from the pollen grain on its contact with the stigma, which it penetrates, thus conveying, it is supposed, the fecundating matter of the grain to the ovule.
similar words(5)
pollen grain
pollen tube
ragweed pollen
pollen mass
pollen sac
The fine dust-like grains or powder formed within the anther of a flowering plant.
Noun
1. the fine spores that contain male gametes and that are borne by an anther in a flowering plant
(hypernym) spore
(hyponym) pollinium
(derivation) pollinate, pollenate, cross-pollinate
Pollen Definition from Science & Technology Dictionaries & Glossaries
spores or grains borne by the anther, containing the male element; in orchids, it is usually not granular, as in most other plants
Pollen Definition from Encyclopedia Dictionaries & Glossaries
Pollen is a fine to coarse powder containing the microgametophytes of seed plants, which produce the male gametes (sperm cells). Pollen grains have a hard coat that protects the sperm cells during the process of their movement from the stamens to the pistil of flowering plants or from the male cone to the female cone of coniferous plants. When pollen lands on a compatible pistil or female cone (i.e., when pollination has occurred), it germinates and produces a pollen tube that transfers the sperm to the ovule (or female gametophyte). Individual pollen grains are small enough to require magnification to see detail.
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Pollen Definition from Society & Culture Dictionaries & Glossaries
The fertilizing element of flowering plants; background air pollutant.
Provided as a public service by the U.S. Environmental Protection Agency
The fertilizing element of flowering plants; background air pollutant.
Pollen Definition from Entertainment & Music Dictionaries & Glossaries
Pollen Definition from Medicine Dictionaries & Glossaries
Small, light, dry protein particles from plants (trees, grasses, and weeds) spread by the wind. Pollen particles are usually the male sex cells of the plant and are smaller than the tip of a pin or less than 40 microns in diameter. Even though pollen is a potent stimulator of allergy. It lodges in the nasal lining tissues (mucus membranes) and other parts of the respiratory tract where it does harm to the person of allergy.
