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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ovum /ˈovəm/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 ovum /ˈovəm/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 O·vum n.; pl. L. Ova E. Ovums
 1. Biol. A more or less spherical and transparent cell, which by a process of multiplication and growth develops into a mass of cells, constituting a new individual like the parent; an egg, spore, germ, or germ cell. See Illust. of Mycropyle.
 Note:The ovum is a typical cell, with a cell wall, cell substance, nucleus, and nucleolus.  In man and the higher animals the cell wall, a vertically striated membrane, is called the zona pellucida; the cell contents, the vitellus; the nucleus, the germinal vesicle; and the nucleolus, the germinal spot.  The diameter of the ripe ovum in man and the domestic animals varies between 1-200 and 1-120 of an inch.
 2. Arch. One of the series of egg-shaped ornaments into which the ovolo is often carved.

From: WordNet (r) 2.0

      n : the female reproductive cell; the female gamete [syn: egg
      [also: ova (pl)]