hydra

英['haidrə]美['haidrə]

n. 九头蛇,难以根除之祸害,水蛇,水螅

同：	[n.] snake

A constellation in the Southern Hemisphere near Hydra and Vela.
唧筒星座南半球靠近长蛇星座和船帆星座的一个星座收藏
A coelenterate,such as a hydra or coral,having a cylindrical body and an oral opening usually surrounded by tentacles.
水螅型珊瑚虫，水螅虫一种有柱状身体和通常被触角包围的口部开口的腔肠动物，比如水螅或珊瑚虫收藏
An asexual reproductive structure,as in yeast or a hydra,that consists of an outgrowth capable of developing into a new individual.
芽体一种无性再生结构，如酵母或水螅，包含有一个外部生长物，可以发育成一个新的个体收藏
A constellation in the Southern Hemisphere near Hydra and Corvus.
巨爵座南天球的一个星座，位于长蛇座和乌鸦座附近收藏

(Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones
- Hydra was slain by Hercules
a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
[同] hydra, snake

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