pollen sac
noun Date: 1875 one of the pouches of a seed plant anther in which pollen is formed

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Pollen sac — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • pollen sac — noun : one of the sacs in a seed plant that contain the pollen and that are initially four in number but are commonly reduced to two by disintegration of the intervening walls in the mature anther * * * Bot. one of the cavities in an anther in… …   Useful english dictionary

  • pollen sac — Bot. one of the cavities in an anther in which pollen is produced. [1870 75] * * * …   Universalium

  • Pollen — Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster] {Pollen… …   The Collaborative International Dictionary of English

  • Pollen grain — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Pollen mass — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Pollen tube — Pollen Pol len, n. [L. pollen fine flour, fine dust; cf. Gr. ?] 1. Fine bran or flour. [Obs.] Bailey. [1913 Webster] 2. (Bot.) The fecundating dustlike cells of the anthers of flowers. See {Flower}, and Illust. of {Filament}. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Pollen — Tip of a tulip stamen with many grains of pollen Closeup image of a cac …   Wikipedia

  • pollen mother cell — noun Date: 1884 a cell that is derived from the hypodermis of the pollen sac and that gives rise by meiosis to four cells each of which develops into a pollen grain …   New Collegiate Dictionary

  • pollen mother cell — noun : a cell that is derived from the hypodermis of the pollen sac and that gives rise by meiosis to four cells, each of which develops into a pollen grain …   Useful english dictionary

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