pollen Idioms & Phrases
noun 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
(Bot.), a particle or call of pollen.
- a pollinium. Gray.
- a compartment of an anther containing pollen, usually there are four in each anther.
noun (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule
- 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.
noun pollen of the ragweed plant is a common allergen
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