Definition of adaptive
1
: providing, contributing to, or marked by adaptation : arising as a result of adaptation
… left ventricular hypertrophy should not be considered solely an adaptive response to an increased ventricular workload.— Edward D. Frohlich et al. An effort to identify the healthy adaptive need that is being met by a patient's behavior can result in increased empathy for the patient.— Thomas O. Brackett
specifically
: of, relating to, or being a heritable trait that serves a specific function and improves an organism's fitness or survival
Webbed feet is an adaptive trait in aquatic animals.
2a
: designed or intended to assist disabled persons : assistive
adaptive devices
b
: engaged in by disabled persons with the aid of equipment or techniques adapted for a disability
adaptive skiing
c
: participating in a sport with the aid of equipment or techniques adapted for disability
an adaptive skier
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Merriam-Webster unabridged
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Time Traveler for adaptive
The first known use of adaptive was in 1760
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