pollen tube definition, pollen tube meaning | English dictionary

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pollen tube

  

      n   a hollow tubular outgrowth that develops from a pollen grain after pollination, grows down the style to the ovule, and conveys male gametes to the egg cell  
English Collins Dictionary - English Definition & Thesaurus  
Collins
pollen  
      n   a fine powdery substance produced by the anthers of seed-bearing plants, consisting of numerous fine grains containing the male gametes  
     (C16: from Latin: powder; compare Greek pale pollen)  
  pollinic      adj  


food pollen  
      n   infertile pollen produced by some plants that attracts insects and thus aids pollination  
Pollen  
      n   Daniel. 1813--96, New Zealand statesman, born in Ireland: prime minister of New Zealand (1876)  
pollen analysis  
      n      another name for       palynology  
pollen basket  
      n   the part of the hind leg of a bee that is specialized for carrying pollen, typically consisting of a trough bordered by long hairs,   (Technical name)    corbicula  
pollen count  
      n   a measure of the pollen present in the air over a 24-hour period, often published to enable sufferers from hay fever to predict the severity of their attacks  
pollen tube  
      n   a hollow tubular outgrowth that develops from a pollen grain after pollination, grows down the style to the ovule, and conveys male gametes to the egg cell  

English Collins Dictionary - English Definition & Thesaurus  

Collaborative Dictionary     English Definition
n.
a patient who lost is tracheal reflexes by general anesthesia or Coma ; state whos trache has been protected by a tube that permits artificial ventilation.
Medical term
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