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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

"Greek football is a hydra with many heads. You cut one, others emerge."

From BBC Feb. 23, 2022

The last time he’d faced a hydra, he’d been saved by a battleship with bronze cannons that blasted the monster to pieces.

From "The Mark of Athena" by Rick Riordan

Melatonin also makes hydras snoozy, Itoh and his team found, and genes that control sleep in hydras are similar to those that do so in humans.

From Scientific American Jun. 16, 2023

Budding occurs commonly in some invertebrate animals such as corals and hydras.

From Textbooks Jun. 9, 2022

"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

One of the hydras had a tree sapling sprouting between its necks.

From "The Last Olympian" by Rick Riordan

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

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

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

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

From Science Daily Jan. 8, 2026

You saw that big Beta Hydrae orrery at Kankad's observatory.

From Uller Uprising by Clark, John D.




Vocabulary lists containing hydra


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