hydra

[ hahy-druh ]

/ ˈhaɪ drə /

SEE SYNONYMS FOR hydra ON THESAURUS.COM

noun, plural hy·dras, hy·drae [hahy-dree] /ˈhaɪ dri/ for 1-3, genitive hy·drae [hahy-dree] /ˈhaɪ dri/ for 4.

(often initial capital letter)Classical Mythology. a water or marsh serpent with nine heads, each of which, if cut off, grew back as two; Hercules killed this serpent by cauterizing the necks as he cut off the heads.

any freshwater polyp of the genus Hydra and related genera, having a cylindrical body with a ring of tentacles surrounding the mouth, and usually living attached to rocks, plants, etc., but also capable of detaching and floating in the water.

a persistent or many-sided problem that presents new obstacles as soon as one aspect is solved.

(initial capital letter)Astronomy. the Sea Serpent, a large southern constellation extending through 90° of the sky, being the longest of all constellations.

Origin of hydra

First recorded in 1325–75; from Latin hydra, from Greek hýdrā “water serpent” (replacing Middle English ydre, from Middle French, from Latin); see otter

Words nearby hydra

Hyderabad, Hyder Ali, hydnocarpate, hydnocarpic acid, hydr-, hydra, hydracid, hydragogue, hydra-headed, hydralazine, hydramine

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for hydra

But this may be like the Hydra, where something new can grow in its place.
The Folly of Banning Greece’s Neo-Nazi Party|James Kirchick|October 5, 2013|DAILY BEAST
Antifragile things, meanwhile, are strengthened by it—just as Hydra grows stronger and more multiheaded with every decapitation.
A Manifesto for Disorder: Nassim Nicholas Taleb’s ‘Antifragile’ Reviewed|Robert Herritt|November 26, 2012|DAILY BEAST
The gang is a hydra, he said, and Suffolk County has seen fluctuations in gang activity.
Central American Gang MS-13 Cuts Swath of Murder and Mayhem Across Long Island|Matthew DeLuca|June 3, 2012|DAILY BEAST
Glaring round, in search of a hydra which did not smile, the speaker discovered it in the reporters' gallery.
The Red Room|August Strindberg

He thought he saw a serpent of the hydra kind, with nine heads, ready to seize him.
The Little Gleaner, Vol. X.|Various
He was as motionless as a corpse, while his thoughts wallowed on the earth and soared, now like the hydra, now like the eagle.
Les Misrables|Victor Hugo
Hercules's second labor was to kill the Hydra, a nine-headed monster that infested the marshes of Lerna.
Stories of Old Greece and Rome|Emilie Kip Baker
We shall have cut the gordian knot of slavery, and the death agonies of the hydra would soon be visible.
The Continental Monthly, Vol 3 No 3, March 1863|Various

British Dictionary definitions for hydra (1 of 3)

hydra

/ (ˈhaɪdrə) /

noun plural -dras or -drae (-driː)

any solitary freshwater hydroid coelenterate of the genus Hydra, in which the body is a slender polyp with tentacles around the mouth

a persistent trouble or evilthe hydra of the Irish problem

Word Origin for hydra

C16: from Latin, from Greek hudra water serpent; compare otter

British Dictionary definitions for hydra (2 of 3)

Hydra¹

/ (ˈhaɪdrə) /

noun

Greek myth a monster with nine heads, each of which, when struck off, was replaced by two new ones

British Dictionary definitions for hydra (3 of 3)

Hydra²

/ (ˈhaɪdrə) /

noun Latin genitive Hydrae (ˈhaɪdriː)

a very long faint constellation lying mainly in the S hemisphere and extending from near Virgo to Cancer

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for hydra

hydra

[ hī′drə ]

Plural hydras hydrae (hī′drē)

See under hydroid.

单词	hydra
释义	hydra [ hahy-druh ] / ˈhaɪ drə / SEE SYNONYMS FOR hydra ON THESAURUS.COM noun, plural hy·dras, hy·drae [hahy-dree] /ˈhaɪ dri/ for 1-3, genitive hy·drae [hahy-dree] /ˈhaɪ dri/ for 4. (often initial capital letter)Classical Mythology. a water or marsh serpent with nine heads, each of which, if cut off, grew back as two; Hercules killed this serpent by cauterizing the necks as he cut off the heads. any freshwater polyp of the genus Hydra and related genera, having a cylindrical body with a ring of tentacles surrounding the mouth, and usually living attached to rocks, plants, etc., but also capable of detaching and floating in the water. a persistent or many-sided problem that presents new obstacles as soon as one aspect is solved. (initial capital letter)Astronomy. the Sea Serpent, a large southern constellation extending through 90° of the sky, being the longest of all constellations. Origin of hydra First recorded in 1325–75; from Latin hydra, from Greek hýdrā “water serpent” (replacing Middle English ydre, from Middle French, from Latin); see otter Words nearby hydra Hyderabad, Hyder Ali, hydnocarpate, hydnocarpic acid, hydr-, hydra, hydracid, hydragogue, hydra-headed, hydralazine, hydramine Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for hydra But this may be like the Hydra, where something new can grow in its place. The Folly of Banning Greece’s Neo-Nazi Party\|James Kirchick\|October 5, 2013\|DAILY BEAST Antifragile things, meanwhile, are strengthened by it—just as Hydra grows stronger and more multiheaded with every decapitation. A Manifesto for Disorder: Nassim Nicholas Taleb’s ‘Antifragile’ Reviewed\|Robert Herritt\|November 26, 2012\|DAILY BEAST The gang is a hydra, he said, and Suffolk County has seen fluctuations in gang activity. Central American Gang MS-13 Cuts Swath of Murder and Mayhem Across Long Island\|Matthew DeLuca\|June 3, 2012\|DAILY BEAST Glaring round, in search of a hydra which did not smile, the speaker discovered it in the reporters' gallery. The Red Room\|August Strindberg He thought he saw a serpent of the hydra kind, with nine heads, ready to seize him. The Little Gleaner, Vol. X.\|Various He was as motionless as a corpse, while his thoughts wallowed on the earth and soared, now like the hydra, now like the eagle. Les Misrables\|Victor Hugo Hercules's second labor was to kill the Hydra, a nine-headed monster that infested the marshes of Lerna. Stories of Old Greece and Rome\|Emilie Kip Baker We shall have cut the gordian knot of slavery, and the death agonies of the hydra would soon be visible. The Continental Monthly, Vol 3 No 3, March 1863\|Various British Dictionary definitions for hydra (1 of 3) hydra / (ˈhaɪdrə) / noun plural -dras or -drae (-driː) any solitary freshwater hydroid coelenterate of the genus Hydra, in which the body is a slender polyp with tentacles around the mouth a persistent trouble or evilthe hydra of the Irish problem Word Origin for hydra C16: from Latin, from Greek hudra water serpent; compare otter British Dictionary definitions for hydra (2 of 3) Hydra¹ / (ˈhaɪdrə) / noun Greek myth a monster with nine heads, each of which, when struck off, was replaced by two new ones British Dictionary definitions for hydra (3 of 3) Hydra² / (ˈhaɪdrə) / noun Latin genitive Hydrae (ˈhaɪdriː) a very long faint constellation lying mainly in the S hemisphere and extending from near Virgo to Cancer Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to hydra invasion, scourge, contagion, pandemic, epidemic, curse, infection, outbreak, influenza, infestation, blight, calamity, pest, cancer, tumor, disaster, evil, bane, burden, jinx Scientific definitions for hydra hydra [ hī′drə ] Plural hydras hydrae (hī′drē) See under hydroid. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	columbarium columbary columbate columbia columbia heights columbia mental maturity scale columbian columbia river columbic columbine columbite columbium columbous columbus columbus air force base columbus, christopher columbus day columella columelliform column columna columnar columnar cell columnar epithelium columnarized

hydra

noun, plural hy·dras, hy·drae [hahy-dree] /ˈhaɪ dri/ for 1-3, genitive hy·drae [hahy-dree] /ˈhaɪ dri/ for 4.

Origin of hydra

Words nearby hydra

Example sentences from the Web for hydra

British Dictionary definitions for hydra (1 of 3)

noun plural -dras or -drae (-driː)

Word Origin for hydra

British Dictionary definitions for hydra (2 of 3)

noun

British Dictionary definitions for hydra (3 of 3)

noun Latin genitive Hydrae (ˈhaɪdriː)

Words related to hydra

Scientific definitions for hydra

Plural hydras hydrae (hī′drē)