ju·ve·nile 
(jvə-nīl′, -nəl)
(jvə-nīl′, -nəl)adj.
1.
a. Not fully grown or developed; young.
b. Of or characteristic of a young animal that has not reached sexual maturity: a bird still in juvenile plumage.
2. Characteristic of, intended for, or appropriate for children or young people: juvenile fashions.
3. Marked by immaturity; childish: juvenile behavior. See Synonyms at young.
4. Geology Relating to or being water, gas, or a mineral-rich fluid believed to have originated from magma and to have come to the earth's surface for the first time.
n.
1.
a. A young person; a child.
b. A young animal that has not reached sexual maturity.
c. A two-year-old racehorse.
2. An actor who plays roles of children or young persons.
3. A children's book.
[Latin iuvenīlis, from iuvenis, young; see yeu- in the Appendix of Indo-European roots.]
juve·nile′ly adv.
juve·nile′ness n.
- yellow journalism
- Yellowknife
- yellowlegs
- yellow mustard
- yellowness
- yellow ocher
- yellow pages
- yellow perch
- yellow peril
- yellow pine
- yellow poplar
- Yellow River
- yellow-rumped warbler
- Yellow Sea
- yellow-shafted flicker
- yellow sheet
- yellow spot
- Yellowstone River
- yellowtail
- yellowthroat
- yellow warbler
- yellowware
- yellowwood
- yellowy
- yelp