Origin of retuse
Examples from the Web for retuse
Retuse: ending in an obtuse sinus or broad, shallow notch, terminated by an obtuse hollow.Explanation of Terms Used in Entomology|John. B. Smith
Retuse, blunted; the apex not only obtuse but somewhat indented, 54.
Retuse, with rounded summit slightly indented, forming a very shallow notch, as in Fig. 137.