Ovule meaning

ōvyo͝ol, ŏvyo͝ol
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(botany) A structure in seed plants that consists of the embryo sac surrounded by the nucellus and one or two integuments and that develops into a seed after it is fertilized.
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(zoology) A small or immature ovum.
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A small egg or seed, esp. one in an early stage of development.
  • (bot.) A structure in seed plants consisting of a nucellus that contains an embryo sac: it develops into a seed after fertilization.
  • (zool.) The immature ovum in the graafian follicle.
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(botany) A structure in seed plants that consists of the embryo sac surrounded by the nucellus and one or two integuments and that develops into a seed after it is fertilized.
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(zoology) A small or immature ovum.
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The female reproductive structure that develops into a seed in a seed-bearing plant. An ovule consists of a megasporangium surrounded by one or two layers of tissue called integuments. The megasporangium produces spores that develop into megagametophytes. These megagametophytes remain within the tissues of the ovule and produce one or more egg cells. Sperm from pollen grains enter the ovule through an opening called a micropyle and fertilize the egg cells. The resulting embryo then begins to develop within the ovule, which becomes a seed. Among the conifers and cycads, the ovules are typically found in pairs on scales in the female cones. The ovules of angiosperms are contained in a structure called the ovary within in the flower.
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(botany) The structure in a plant that develops into a seed after fertilization; the megasporangium of a seed plant with its enclosing integuments.
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(zoology) An immature ovum in mammals.
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Origin of ovule

  • New Latin ōvulum diminutive of Latin ōvum egg awi- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition