Term: single-rotor helicopter: a helicopter having a single rotor
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: chrysophyceae: all the yellow-green algae having flagella of unequal length
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: aerator: an apparatus for exposing something to the air (as sewage)
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: herb paris: European herb with yellow-green flowers resembling and closely related to the trilliums; reputed to be poisonous
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: umpire: an official at a baseball game
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: fire tower: a watchtower where a lookout is posted to watch for fires
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: pithead: the entrance to a coal mine
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: silly season: a time usually late summer characterized by exaggerated news stories about frivolous matters for want of real news
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: southland: any region lying in or toward the south
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: heloderma: type genus of the Helodermatidae; American venomous lizards
Broader: helicopter: an aircraft without wings that obtains its lift from the rotation of overhead blades | Unrelated: indri: large short-tailed lemur of Madagascar having thick silky fur in black and white and fawn