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ovule

/ov-yool, oh-vyool/US // ˈɒv yul, ˈoʊ vyul //UK // (ˈɒvjuːl) //

胚珠,胚胎,胚芽,卵巢

Related Words

Definitions

n.名词 noun
  1. 1
    • : Botany. a rudimentary seed.the plant part that contains the embryo sac and hence the female germ cell, which after fertilization develops into a seed.
    • : Biology. a small egg.

Synonyms & Antonyms

Examples

  • Each of these ovules grows a single silk, which reaches up and out of the top of the husk, where it dangles in the hopes of catching a bit of pollen on its little sticky hairs.

  • Before those ears look anything like the juicy kernel-covered cob you eat, they’re essentially a hard cylinder covered in hundreds of unfertilized ovules.

  • It also explains why sometimes you get cobs with bare patches—sometimes not every ovule gets fertilized.

  • We know he had been for many years interested in the ovule, and he made a number of important discoveries respecting it.

  • We must recollect that the comparative morphology of the ovule (in the wide sense) was not attempted.

  • When at Malacca Griffith interested himself among many other problems in the ovule and the development of the seed of Avicennia.

  • Interest in the structure of the ovule and the nature of fertilisation was widespread at the time Griffith worked.

  • The ovary is free, and the carpels, one or more in number, contain each a single ovule.