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Hydra
nounfemininegeneral useuncommon/ˈi.dɾɐ/hi·dra
Definition
11. In Greek mythology, a many-headed water serpent whose heads regrew when cut off, slain by Hercules. 2. A small freshwater invertebrate animal of the genus Hydra, with a tubular body and tentacles.
Usage examples
“The Lernaean Hydra was one of Hercules' twelve labours.”
“We studied the hydra under the microscope in biology class.”
Common combinations
Lernaean Hydraheads of the hydrafreshwater hydra