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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.

See Examples For:

Samar shares the popular view that for every senior official "they've reportedly assigned three to seven successors. Like a hydra - you cut one head off, another grows back. They won't surrender any time soon."

From BBC Mar. 25, 2026

"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

Just as he’d hoped, it was a hydra.

From "The Son of Neptune" by Rick Riordan

When deprived of this sleeplike period with irritating vibrations that were applied to their tank, the hydras “slept” longer the next chance they got and fell asleep more quickly.

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

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 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

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

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

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

From Uller Uprising by John D. Clark




Vocabulary lists containing hydra


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