ovule

n. egg-like structure which develops into a seed following fertilization (Botany); immature egg (Biology)

Ovule literally means "small egg." In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integuments forming its outer layer, the nucellus (or megasporangium), and the megaspore-derived female gametophyte (or megagametophyte) in its center. The megagametophyte (also called embryo sac in flowering plants) produces the egg cell for fertilization. After fertilization, the ovule develops into a seed.
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Ovule 1. the oocyte within the graafian follicle. 2. any small, egglike structure. o·vule n. 1. A small or immature ovum of a mammal. 2. [more]Ovule - Community and Resources

Noun
1. a small body that contains the female germ cell of a plant; develops into a seed after fertilization
(hypernym) reproductive structure
(hyponym) amphitropous ovule
(part-meronym) chalaza
2. a small or immature ovum
(hypernym) ovum, egg cell
(derivation) ovulate

n. (Anatomy) ovule, egg-like structure which develops into a seed following fertilization

v. ovulate, produce and expel ova from the ovary