n.the property of having only a dull tip (if any)

Antipodality in convex cones and distance to unpointedness
Wing-Shape Variation and Differential Timing of Migration in Dark-Eyed Juncos
Geographical Morphology of Male Yellow Warblers
Pointedness, connectedness, and convergence results in the space of closed convex cones
Separated and Connected Maps
Computing the radius of pointedness of a convex cone