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ovule    音标拼音: ['ovjul]
n. 卵子;胚珠;小卵

卵子;胚珠;小卵

ovule
n 1: a small body that contains the female germ cell of a plant;
develops into a seed after fertilization
2: a small or immature ovum

Ovule \O"vule\, n. [Dim. of L. ovum an egg: cf. F. ovule. Cf.
{Ovolo}, {Ovulum}.] (Biol.)
(a) The rudiment of a seed. It grows from a placenta, and
consists of a soft nucleus within two delicate coatings.
The attached base of the ovule is the hilum, the coatings
are united with the nucleus at the chalaza, and their
minute orifice is the foramen.
(b) An ovum.
[1913 Webster]


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  • Ovule - Wikipedia
    In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells It consists of three parts: the integument, forming its outer layer, the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center
  • Ovule | Definition, Description, Facts | Britannica
    Ovule, plant structure that develops into a seed when fertilized A mature ovule consists of a food tissue covered by one or two future seed coats, known as integuments
  • OVULE Definition Meaning - Merriam-Webster
    The meaning of OVULE is a structure of a seed plant that gives rise to female reproductive cells and is found within the floral ovaries of angiosperms or are borne on female strobili of gymnosperms
  • Structure of Ovule - Parts, Diagram Functions for NEET
    An ovule is a small, oval-shaped structure present inside the ovary of flowering plants It is attached to the placenta of the ovary and develops into a seed after fertilization
  • Ovule – Definition, Structure, Types, Diagram, Functions
    What is Ovule? The ovule is a critical component of the female reproductive system in seed plants, playing an essential role in the production of seeds Located within the ovary of the carpel, the ovule houses the female gametes and is pivotal for seed development
  • OVULE Definition Meaning | Dictionary. com
    Normally, a pollen grain that sticks to the stigma of a flower during pollination germinates into a long tube that grows straight and unbranched through the ovary to the ovules, where fertilisation takes place
  • Ovule - (General Biology I) - Vocab, Definition, Explanations | Fiveable
    An ovule is a structure found in seed plants that contains the female gametophyte and develops into a seed after fertilization It is critical for sexual reproduction as it houses the egg cell and, upon successful fertilization, transforms into a seed, ensuring the continuation of the plant species
  • Ovule - an overview | ScienceDirect Topics
    Overview of Ovule Development During Sexual Reproduction The ovule is the organ that forms the seeds of flowering plants It is borne in the ovary of the flower and consists of nucellus protected by integuments, precursors of embryo endosperm, and seed coat, respectively
  • OVULE | definition in the Cambridge English Dictionary
    OVULE meaning: 1 a part inside the ovary (= organ that produces eggs) of a plant that contains the female sex… Learn more
  • ovule noun - Definition, pictures, pronunciation and usage notes . . .
    Definition of ovule noun in Oxford Advanced Learner's Dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more





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