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Definitions

hydra

[hahy-druh] / ˈhaɪ drə /


NOUN
dragon
Synonyms


NOUN
polyp
Synonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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"In 20 years, and despite the resolute efforts of our police officers, gendarmes, judges, teachers and elected officials, the antisemitic hydra has kept advancing," he said.

From Barron's Feb. 13, 2026

“It’s like a hydra, like a three-headed monster!” she says with a hearty laugh.

From Los Angeles Times Jan. 22, 2025

This suggests that evolution plays around with these chemical pathways, altering them over the hundreds of millions of years since the hydra and human lineages diverged from each other on the evolutionary tree.

From Scientific American Jun. 16, 2023

The lake has many species, including sexually reproducing frogs, water fleas that multiply by parthenogenesis, hydra that multiply by budding, and sponges that multiply by fragmentation.

From Textbooks Jun. 9, 2022

The hydra spit acid, which was a mistake.

From "The Mark of Athena" by Rick Riordan

Yet dopamine, which elicits wakefulness in people and other animals, makes hydras sleepy.

From Scientific American Jun. 16, 2023

"Online services are like hydras, if you fix one problem, another one often emerges," James Mickens, a professor of computer science at Harvard, explains in a statement.

From BBC Sep. 9, 2021

Everyone in New York has heard about co-op boards that proved to be the most persnickety of the many many-headed hydras exerting authority over daily life.

From New York Times May 8, 2016

The name van Leeuwenhoek gave them was “polyps,” though they would eventually be commonly known as hydras.

From Salon Jan. 17, 2016

The walls were lined with metal shelves six stories high, decorated with war banners, painted shields, and the stuffed heads of dragons, hydras, giant lions, and wild boars.

From "The Son of Neptune" by Rick Riordan

In EX Hydrae, the magnetic field is not strong enough to direct all incoming material onto the star's magnetic poles.

From Science Daily Jan. 8, 2026

EX Hydrae exists in a binary system alongside a normal main sequence star.

From Science Daily Jan. 8, 2026

The mission's ability to measure the polarization of X-rays allowed astronomers to closely examine EX Hydrae, a type of system known as an intermediate polar.

From Science Daily Jan. 8, 2026

The infalling matter collides with other material bound to the white dwarf, forming tall columns of hot gas that emit intense X-rays, making systems like EX Hydrae ideal targets for IXPE.

From Science Daily Jan. 8, 2026

They have a model, a most ingenious affair run by clockwork, at the University of Konkrook, to show the apparent movement and position of Beta Hydrae in the sky; it does so fairly accurately.

From Uller Uprising by John D. Clark




Vocabulary lists containing hydra


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