copters is copter's Plural Form

copter

US [ˈkɑptər]
UK [ˈkɒptə(r)]
  • n.〈美〉helicopter (直升飞机)的缩略词
  • Web直升机；颇大的直升机；直昇机
Plural Form：copters  

E-C

E-E

Web Definition

n.
1.
〈美〉helicopter (直升飞机)的缩略词

Sample Sentence