co·lin·e·ar I. \(ˈ)kō|linēə(r)\adjective Etymology: by alteration : collinear II. adjective (-es) : having corresponding parts arranged in the same linear order < good evidence is accumulating that the gene and its polypeptide product are colinear — J.D.Watson > • co·lin·ear·i·ty\(ˌ)kōˌlinēˈarə̇d.ē\noun