Something, such as a device or mechanism, that is changed or changes so as to become suitable to a new or special application or situation.
A composition that has been recast into a new form: The play is an adaptation of a short novel.
Biology An alteration or adjustment in structure or habits, often hereditary, by which a species or individual improves its condition in relationship to its environment.
Physiology The responsive adjustment of a sense organ, such as the eye, to varying conditions, such as light intensity.
Change in behavior of a person or group in response to new or modified surroundings.