trirotor

T1R1I1R1O1T1O1R1

adjective

Having three rotors; having three main rotors.

OriginEnglish rotor ← Latin tri- ← Proto-Italic *tri- →
Scrabble 8
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Meanings

adjectivetrirotor (not comparable)
  1. not comparablehelicopters; or drones; helicopters; or dronesengineeringHaving three rotors; having three main rotors.
nountrirotor (plural trirotors)

plural trirotors

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

Origin

  1. Proto-Indo-European*tréyes
  2. Proto-Indo-European*tri-
  3. Proto-Italic*tri-
  4. Latintri-
  5. Englishtri-
  6. Englishrotor
  7. Englishtrirotor

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

Full word history & related roots →
Cite this entry
APA

trirotor. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/trirotor

MLA

“trirotor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trirotor. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “trirotor,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/trirotor.

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