what does single-rotor helicopter mean?

SINGLE-ROTOR HELICOPTER as NOUN

Meaning
- a helicopter having a single rotor
Hypernyms(s) single-rotor helicopter is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- helicopter (what does helicopter mean?)
- chopper (what does chopper mean?)
- whirlybird (what does whirlybird mean?)
- eggbeater (what does eggbeater mean?)