Definitions for "Culmen"
The dorsal ridge of a bird's bill.
the upper edge or ridge of upper mandible.
A standard measure used by bird banders; it is the straight-line measure of the top edge of the upper bill from its tip to the point where feathers begin to cover its base.
Keywords:  summit, acme, culminate, latin, top
Top; summit; acme.
Latin = summit (cf. culminate).