[joo-vuh-nl] /ˈdʒu və nl/
the first plumage of birds, composed of contour feathers, which in certain species follows the naked nestling stage and in other species follows the molt of natal down.
[joo-vuh-nes-uh nt] /ˌdʒu vəˈnɛs ənt/ adjective 1. being or becoming youthful; young. 2. young in appearance. 3. having the power to make young or youthful: a juvenescent elixir. /ˌdʒuːvɪˈnɛsəns/ noun 1. youth or immaturity 2. the act or process of growing from childhood to youth 3. restoration of youth; rejuvenation /ˌdʒuːvɪˈnɛsənt/ adjective 1. becoming or […]
[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. 6. a book for children. 7. […]
[joo-vuh-nes-uh nt] /ˌdʒu vəˈnɛs ənt/ adjective 1. being or becoming youthful; young. 2. young in appearance. 3. having the power to make young or youthful: a juvenescent elixir. /ˌdʒuːvɪˈnɛsənt/ adjective 1. becoming or being young or youthful adj. 1821, from Latin iuvenescentem (nominative iuvenescens), present participle of iuvenescere “to grow into youth,” from iuvenis “young” […]
- Juvenile arthritis
juvenile arthritis ju·ve·nile arthritis (jōō’və-nīl’, -nəl) n. Chronic arthritis that begins in childhood and is marke by swelling, tenderness, and pain in one or more joints and by lymph node and splenic enlargement. Also called juvenile rheumatoid arthritis, Still’s disease.