What does rotorcraft mean?
A rotorcraft is an aircraft that uses rotating blades to produce lift or help control its movement. The best-known example is the helicopter, whose rotors allow it to hover, move sideways, and land in places inaccessible to fixed-wing aircraft. The word is also used more broadly as a category covering helicopters and other rotary-wing aircraft, especially in technical, military, and aviation contexts. In general conversation, people usually say helicopter rather than rotorcraft because the category term can sound formal or institutional. The word is especially associated with emergency services, transport, military operations, and the development of aviation technology. Although a rotorcraft may be a helicopter, not every use of the word refers specifically to a helicopter: it can describe a wider family of aircraft distinguished by their rotors.
nounAn aircraft that uses rotating blades to provide lift or control, especially a helicopter. The term is also used as a general category for helicopters and similar aircraft.
- An aircraft that uses rotating blades to generate lift or assist in control, especially a helicopter.
- The broader category of aircraft distinguished from fixed-wing aircraft by the use of rotors.
"Two rotorcraft approached the stranded hikers as the storm clouds gathered."
"The rescue helicopter was the first rotorcraft to reach the remote valley."
"The aviation exhibition displayed rotorcraft ranging from compact rescue helicopters to heavy-lift models."
The form is unchanged in the plural: one rotorcraft, two rotorcraft.
"Several rotorcraft took off in quick succession."
Unlike an airplane, a rotorcraft can hover in place—and sometimes land on surfaces that fixed-wing aircraft cannot approach.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does rotorcraft come from?
Rotorcraft combines the English word rotor, derived through French from Latin rotare, “to turn,” with craft, meaning a vehicle or skilled construction. The underlying idea comes from Latin rota, “wheel,” which is also the source of English rotate, rotation, and rotatory. The compound developed as aviation terminology for aircraft using rotating blades, especially helicopters.
How rotorcraft is actually used
Rotorcraft is chiefly a technical or formal aviation term; in everyday speech, helicopter is often more natural. The noun normally has the same singular and plural form.
Easily confused with rotorcraft
A helicopter is a specific kind of rotorcraft, whereas rotorcraft is a broader category that can include other rotary-wing aircraft.