A capsule or sac, such as an ootheca, in which egg cells are produced...。 点击查看英语发音、例句和视频。

The earliest known use of the noun ovisac is in the 1830s. OED's earliest evidence for ovisac is from 1834, in the writing of Richard Owen, comparative anatomist and palaeontologist. ovisac is formed within English, by compounding.

Distal to the shell gland is the ovisac, a distended region in which eggs are stored prior to laying. In ovoviviparous species, the egg remains within the ovisac until it hatches. Some cartilaginous fishes, however, are truly viviparous, giving birth to live young, and producing no egg shell

OVISAC definition: a capsule or sac , such as an ootheca , in which egg cells are produced | Meaning, pronunciation, translations and examples

ovisac (plural ovisacs) A Graafian follicle; any sac containing an ovum or ova. The inner layer of the fibrous wall of a Graafian follicle.

Ovisac, ōv′i-sak, n. the cavity in the ovary which immediately contains the ovum. The afflux of blood to the uterus during the rupture of the ovisac, cannot be shown to be useful by any effort …

An egg-containing capsule, such as an ootheca or a Graafian follicle. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Want to thank TFD for its existence?

Ovisac. ōv′i-sak, n. the cavity in the ovary which immediately contains the ovum. [L. ovum, an egg, and sac.]

ovisac中文的意思、翻譯及用法：1. Na capsule or sac, such as an ootheca, in which egg cells are produced 卵囊。 英漢詞典提供【ovisac】的詳盡中文翻譯、用法、例句等

o•vi•sac (ō′ və sak′), n. [Zool.] Zoology a sac or capsule containing an ovum or ova. No titles with the word (s) "ovisac". Visit the English Only Forum. Help WordReference: Ask in the forums …