macrotrichium
/ˈmakrə(ʊ)trɪkɪəm/Entomology
noun
Any of the larger hairs on the body of certain insects, especially those on the surface of the wings. Usually in plural.
Origin
1930s. From macro- + ancient Greek τριχιον (from τριχ-, θρίξ hair + -ιον, diminutive suffix).