| 1. | superl. of young. |
| 2. | a person who is the least old of a group, as the youngest member of a family: Their youngest is still in high school. |
adjective, young⋅er [yuhng-ger]
, young⋅est [yuhng-gist]
, noun | 1. | being in the first or early stage of life or growth; youthful; not old: a young woman. |
| 2. | having the appearance, freshness, vigor, or other qualities of youth. |
| 3. | of or pertaining to youth: in one's young days. |
| 4. | inexperienced or immature. |
| 5. | not far advanced in years in comparison with another or others. |
| 6. | junior, as applied to the younger of two persons having the same name: the young Mr. Smith. |
| 7. | being in an early stage generally, as of existence, progress, operation, development, or maturity; new; early: a young wine; It is a young company, not yet firmly established. |
| 8. | representing or advocating recent or progressive tendencies, policies, or the like. |
| 9. | those who have youth; young persons collectively: the educated young of today; a game for young and old. |
| 10. | young offspring: a mother hen protecting her young. |
| 11. | with young, (of an animal) pregnant. |

Young , Thomas. 1773-1829.
British physician and physicist who in 1801 postulated the three-color theory of color vision. Young also discovered (1801) astigmatism and described accommodation.
| Young (yŭng) Pronunciation Key
British physicist and physician who is best known for his contributions to the wave theory of light and his discovery of how the lens of the human eye changes shape to focus on objects of different distances. He also studied surface tension and elasticity, and Young's modulus (a measure of the rigidity of materials) is named for him. He is also credited with the first scientific definition of the word energy. |