| 单词 | boattail | 
| 释义 | boattail1 of 2nounˈbō(t)ˌtāl 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   boattail2 of 2 adjective"  variants  or less commonly boat-tailed  ˈ⸗¦⸗ 1   : tapered at the back end like the stern of a boat  a boattail bullet a boattail ski 2   [boattail entry 1]  : of, relating to, or having a boattail  bullets of the boattail type | 
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