| achievement age | |
| —n | |
| psychol Compare mental age the age at which a child should be able to perform a standardized test successfully | |
| a stew of meat, vegetables, potatoes, etc. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
achievement age a·chieve·ment age (ə-chēv'mənt)
n.
The level of an individual's educational accomplishment as measured by standard achievement tests and expressed as the age in years of a child for whom the total score would be an average score.