• (n.) Mutual adaption.
The operation of selection jointly on two or more loci. ... (05 Mar 2000) ... 
(ko-ad″ap-ta´shәn) the mutual, correlated, adaptive changes in two interdependent organs.
Co·ad`ap·ta'tion noun Mutual adaption. R. Owen. 
Type: Term Pronunciation: kō′ad-ap-tā′shŭn Definitions: 1. The operation of selection jointly on two or more loci.
the correlation of structural or behavioral characteristics in two or more interacting organisms in a community or organs in an organism resulting from progressive accommodation by natural selection. · Also calledthe accumulation in a population's gene pool of genes that interact by harmonious epistasis in the development of an organism.