a short term adaptation which is not inherited
"ADAPTATION" can be a confusing term because of the many ways it is used. For example, "adaptation" can refer to both processes and products:
(1) a "developmental" change such as that of a sense organ that make it less responsive to repetitive but irrelevant stimuli, or
(2) an evolutionary change such as those caused by selection pressures on some attribute of a trait that helps the organism cope with a changing environment over the generations, or
(3) a biological TRAIT that exists because it confers or is linked to a trait that now (or in the past) has conferred a biological advantage enhancing an organism's FITNESS.