n. pl. cul•mi•na (kŭk′mə-nə)
Examples from the Web for culmen
These measurements—a culmen of over 26.5 and a wing of 91 mm.Extinct Birds|Walter Rothschild
Changes in the length of the culmen are indicated in Table 1.The Postnatal Development of Two Broods of Great Horned Owls|Donald F. Hoffmeister
Bill short and stout; culmen arched, and overhanging the mandible.British Birds in their Haunts|Rev. C. A. Johns
In addition, the depth of the culmen averages two millimeters less in the subspecies in the Marquesas.The Avifauna of Micronesia, Volume 3|Rollin H. Baker
Culmen, kul′men, n. highest point: the median length-wise ridge of a bird's upper mandible.