Between infantile and adult. Used in medicine to indicate onset in childhood, as in juvenile rheumatoid arthritis.

A children's book.

1620s, "young, youthful," from Latin iuvenilis "of or belonging to youth, youthful," from iuvenis "young person, one in the flower of his or her age" (in Roman use, the p [..]

animal that is no longer a baby but has not reached sexual maturity.

Publishers use the term juvenile or children's literature to designate books suitable for children, though Joseph Shipley reminds us these are "not necessarily childish books" ( [..]

A young bird that is no longer dependent on its parents but has not gained its adult plumage.

Immature form of a nematode that hatches from an egg and molts several times before becoming an adult.

adj. Characteristic of youth.

the role of a young, teenaged male character; the female counterpart is known as an ingenue.  

An individual who has not reached the age at which he or she should be treated as an adult under criminal law. Court systems may handle offenses committed by juveniles separately from offences committ [..]

juvenile (pop)

an individual who is under an age fixed by law (as 18 years) at which he or she would be charged as an adult for a criminal act compare minor

A juvenile animal is one that is weaned from its mother (no longer drinking mother's milk) but is not yet sexually mature.

A bird while it wears its juvenal plumage. This period of time can vary for different species. Many songbirds reach adult plumage within a few months while other species such as gulls and hawks take a [..]

Young, immature life stage Kingdom

A phase in the sexual cycle of a plant characterized by differences in appearance from the adult and which lacks the ability to respond to flower-inducing stimuli.

biology - lifestage before adult

Two-year-old horse. K

 (see “immature”)

(Whole Plant) Young, infertile stages in life cycle; (Leaf) form associated with juvenile plant, e.g. on coppice shoots.

A phase in the sexual cycle of a plant characterized by differences in a appearance from the adult and which lacks the ability to respond to flower-inducing stimuli.

Under 18 USCS § 5031, a 'juvenile' is a person who has not attained his eighteenth birthday. On the other hand, a person who has not attained his twenty-first birthday is considered to be a [..]

The early stage in the life cycle of anadromous fish when they migrate downstream to the ocean.

A young animal either still cared for by adults or able to care for itself, but not sexually mature or of adult size or status.

Person who has not yet reached age (usually 18) at which he/she can be treated as adult for purposes of criminal law.

Two-year-old horse of either gender. A  B  C  D  E  F  G  H  I  J  K   L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

A person under 18 years of age.

A person under the age of 18.

Not fully grown or developed; young. Juvenile Criminal Cases

An organism that has not yet reached sexual maturity.

not fully grown or developed, young

("joo-ven-I-L"): a young or not yet mature organism. You are a juvenile.

Any member of a species that is not yet sexually mature. Often used interchangeably with young of the year (YOY).

A youth at or below the upper age of juvenile court jurisdiction in a particular state.

a person accused of an offence who is too young at the time of the alleged offence to be subject to criminal court proceedings and is handled in the juvenile justice system. The upper age limit for juveniles in most states is the eighteenth birthday.

 A person who is under an age fixed by law (under 18).

Someone under the age of 18.

A person under eighteen years of age; see “Minor” below.

Youth under the age of 18.

A child under 18 years of age.

A child under the age of 18 years of age.

A person 10 or more years of age but less than 18 years of age. By definition, a person younger than 10 is a child, not a juvenile.

A person under the age of 18.

Young animal that has not matured.

A young fish or animal that has not reached sexual maturity.

Youth at or below the upper age of original juvenile court jurisdiction. (See juvenile population

An animal that has not yet reached adult stage.

A two year old horse.

Two-year-old horse.