birotor

B3I1R1O1T1O1R1

adjective

Having two rotors; having two main rotors.

OriginEnglish rotor ← Latin bi- ← Proto-Italic *dwi- →
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Meanings

adjectivebirotor (not comparable)

alternative bi-rotor

  1. not comparablehelicopters; or drones; helicopters; or dronesengineeringHaving two rotors; having two main rotors.
nounbirotor (plural birotors)

plural birotors · alternative bi-rotor

  1. A pump or rotorcraft with two rotors or two main rotors.

Origin

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Italic*dwi-
  4. Latinbi-
  5. Englishbi-
  6. Englishrotor
  7. Englishbirotor

From bi- + rotor. Late 19th to early 20th century, originally with reference to pumps.

Full word history & related roots →

Translations

Italian birotore
  • birotorehaving two rotors or two main rotors
Cite this entry
APA

birotor. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/birotor

MLA

“birotor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/birotor. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “birotor,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/birotor.

Source: birotor on Wiktionary, CC BY-SA 4.0.