coossify — co·os·si·fy kō äs ə .fī vi, fied; fy·ing to grow together by ossification (as of bones or parts of a bone): ANKYLOSE co·os·si·fi·ca·tion (.)kō .äs ə fə kā shən n * * * co·os·si·fy (ko osґĭ fi) to grow together by ossification … Medical dictionary