I. ˈbō(t)ˌtāl noun
1. : boat-tailed grackle
2. : the part of an artillery projectile in the rear of the rotating band when shaped like the inverted frustum of a cone
II. adjective
also boat-tailed ˈ ̷ ̷| ̷ ̷
1. : tapered at the back end like the stern of a boat
a boattail bullet
a boattail ski
2.
[ boattail (I) ]
: of, relating to, or having a boattail
bullets of the boattail type