hydra lietuviškai

Paaiškinimas anglų kalba

• small tubular solitary freshwater hydrozoan polyp
• trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality "we may be facing a hydra that defies any easy solution"
• a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
• (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones "Hydra was slain by Hercules"
• A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.