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单词 pollen
释义

pollen

/ˈpɒlən /
noun [mass noun]
A fine powdery substance, typically yellow, consisting of microscopic grains discharged from the male part of a flower or from a male cone. Each grain contains a male gamete that can fertilize the female ovule, to which pollen is transported by the wind, insects, or other animals.The stigmas were then pollinated with pollen from a flower whose anther had dehisced that day....
  • These bees visited flowers in search of pollen, adopting a supine posture as they entered the corolla tube.
  • The egg cell is fertilized by pollen from the male sex organs, the stamens.

Origin

Mid 18th century: from Latin, literally 'fine powder'.

  • This is the Latin word for ‘fine powder or flour’. It was originally used in the Latin sense, and adopted for botanical use in the mid 18th century.

Rhymes

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更新时间:2024/12/23 5:53:14