Hydra
01
ヒドラ, 淡水ポリプ
a freshwater polyp with a cylindrical body and tentacles
例
Researchers observed a hydra attached to the underside of a leaf in the pond, its tentacles swaying gently in the water.
研究者たちは池の葉の裏に付着したヒドラを観察し、その触手が水中で優しく揺れているのを見た。
02
ヒドラ, 持続的な問題
trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
03
ヒドラ, うみへび座
a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
04
ヒドラ, レルネーのヒドラ
a mythical serpent-like creature in Greek mythology that has multiple heads, and if one head is cut off, two more will grow in its place



























