counterrotating

American  

[koun-ter-roh-tey-ting, koun-] / ˈkaʊn tərˈroʊ teɪ tɪŋ, ˌkaʊn- /

adjective

Machinery.

1. (of two corresponding or similar moving parts) rotating in opposite directions.

   counterrotating propellers.

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Etymology

Origin of counterrotating

counter- + rotating ¹ ( def. )

Example Sentences

When we turn on the fans, the frequencies at which the cavity resonates are different for counterrotating sound waves, similar to how Zeeman splitting changes the energy of light’s interactions in a ferrite.

From Scientific American • Nov. 18, 2022

The counterrotating beams of protons, each as thin as a fork's tine and containing quadrillions of particles, will whip around the ring-shaped tunnel 3,000 times, producing up to 100 million collisions, every second.

From Time Magazine Archive

Eventually he came up with a device that consists of a plastic turntable and a counterrotating gearlike disk.

From Time Magazine Archive

Allison turboprop engine, and the two counterrotating propellers slowly lifted the plane up to 175 ft.

From Time Magazine Archive