hexacopter
noun [ C ] uk/ˈhek.səˌkɒp.tər/ us/ˈhek.səˌkɑːp.tɚ/
六角无人机
a small remote-controlled aircraft like a helicopter, with six blades that go around on top, used especially to film or photograph things from the air. A hexacopter is a type of drone.
Compare: octocopterquadcopter