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juvenile

[joo-vuh-nl, -nahyl] /ˈdʒu və nl, -ˌnaɪl/
adjective
1.
of, pertaining to, characteristic of, or suitable or intended for young persons:
juvenile books.
2.
young; youthful:
juvenile years.
3.
immature; childish; infantile:
His juvenile tantrums are not in keeping with his age.
noun
4.
a young person; youth.
5.
Theater.
  1. a youthful male or female role.
  2. an actor or actress who plays such parts.
6.
a book for children.
7.
Ornithology. a young bird in the stage when it has fledged, if altricial, or has replaced down of hatching, if precocial.
8.
a two-year-old racehorse.
Origin
1615-1625
1615-25; < Latin juvenīlis youthful, equivalent to juven(is) youthful + -īlis -ile
Related forms
juvenilely, adverb
prejuvenile, adjective
unjuvenile, adjective
unjuvenilely, adverb
unjuvenileness, noun
Can be confused
jejune, juvenile.
Synonyms
1. See young.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for juvenile
  • It takes one to two years for a juvenile to turn from a grayish color to the pink that we most associate with flamingoes.
  • In times when summer temperatures peaked, researchers found juvenile cod -- born in late winter -- to be smaller than usual.
  • This photo shows the progression of a juvenile whalefish turning into a male whalefish.
  • Retention of juvenile characteristics in the adults of a species, as among certain amphibians.
  • We have urged juvenile justice reform for decades.
  • The massive silverback was on guard and kept watch over the three females, two babies, and one juvenile.
  • But they are both juvenile and very cumbersome.
  • Thomas said she's visited her son in the juvenile detention center, where on some visits they are separated by glass.
  • If crows are the bullies of the bird world, magpies are the juvenile deliquents.
  • How can anyone bring a lawsuit against a juvenile?
British Dictionary definitions for juvenile

juvenile

/ˈdʒuːvɪˌnaɪl/
adjective
1.
young, youthful, or immature
2.
suitable or designed for young people juvenile pastimes
3.
(of animals or plants) not yet fully mature
4.
of or denoting young birds that have developed their first plumage of adult feathers
5.
(geology) occurring at the earth's surface for the first time; new juvenile water, juvenile gases
noun
6.
a juvenile person, animal, or plant
7.
an actor who performs youthful roles
8.
a book intended for young readers
Derived Forms
juvenilely, adverb
juvenileness, noun
Word Origin
C17: from Latin juvenīlis youthful, from juvenis young
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
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Word Origin and History for juvenile
adj.

1620s, from Latin iuvenilis "of or belonging to youth," from iuvenis "young person," originally "young" (cf. French jeune; see young). Juvenile delinquency first recorded 1816; Juvenile delinquent the following year.

Online Etymology Dictionary, © 2010 Douglas Harper
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