pollen是什么意思？

pollen

英[ˈpɒlən] 美[ˈpɑlən]

• n. 花粉，[虫]粉面；
• vt. 传授花粉给，用花粉掩盖；

复数：pollens;

例句

• He developed an allergy to pollen. 他对花粉过敏。
• Hay fever sufferers have a worse time when the pollen count is high. 花粉计数高时，枯草热患者的日子就更不好过了。
• Nectar and pollen are very nutritious. 花蜜和花粉是很有营养的。
• pollen granule 花粉粒
• As the day goes on, the pollen dries up and becomes hard... 日子一天天过去,花粉干结成了硬块。
• A serologic reaction retards the growth of the pollen tube. 血清反应阻止花粉管生长.
• When pollen maturating , many small calcium precipitates distributed in its cytoplasm, especially in nucleus. 接近开花时的成熟花粉粒细胞质中, 细小的钙颗粒主要分布在营养细胞和生殖细胞中.
• They strip it with their mandibles and pack it into the pollen baskets on their legs. 它用上颚把蜂胶剥下来,把它放进它腿上的花粉篮里.
• On the plus side, wind dilutes and scatters air pollutants, and carries pollen. 从好处来说, 风能稀释和驱散空气中的污染物质, 传播花粉.
• Propolis consists of 55 % resinous compounds and balsams, 30 % beeswax , 10 % aromatic oils, 5 % bee pollen. 蜂胶包含55%的树脂化合物和香液, 30%的蜂蜡, 10%香油和5%的蜂粉.

柯林斯高阶英汉双解学习词典释义

• N-MASS
  花粉
  Pollen is a fine powder produced by flowers. It fertilizes other flowers of the same species so that they produce seeds.

英汉词典释义

• n.
  花粉
  Hay fever sufferers have a worse time when the pollen count is high. 花粉计数高时，枯草热患者的日子就更不好过了。 He developed an allergy to pollen. 他对花粉过敏。 Hummingbirds have discovered that nectar and pollen are very nutritious. 蜂鸟发现花蜜和花粉是很有营养的。

英英词典释义

• Noun
  1. the fine spores that contain male gametes and that are borne by an anther in a flowering plant

行业词典

• 医学： 花粉：开花植物的小孢子(雄性受精成分)，许多花粉(特别是空气传播的)是变应原，即它们有蛋白质性的抗原，能使人体致敏，引起变态反应的症状；
  旅游： 花粉；
  昆虫学： 粉被；花粉；花粉狀；
  植物学： 花粉；
  生物学： 花粉；