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4 definitions found

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

 zona
 地帶

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

 zo·na /ˈzonə/ 名詞
 帶,區,帶狀皰疹

From: Webster's Revised Unabridged Dictionary (1913)

 Zo·na n.; pl. Zonae   A zone or band; a layer.
 Zona pellucida. [NL.] Biol. (a) The outer transparent layer, or envelope, of the ovum. It is a more or less elastic membrane with radiating striae, and corresponds to the cell wall of an ordinary cell.  See Ovum, and Illust. of Microscope. (b) The zona radiata.
 Zona radiata [NL.] Biol., a radiately striated membrane situated next the yolk of an ovum, or separated from it by a very delicate membrane only.
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From: WordNet (r) 2.0

 zona
      n : (anatomy) any encircling or beltlike structure [syn: zone]