irrotational

adjective

ir·ro·ta·tion·al | \ ˌir-(r)ō-ˈtā-shnəl

How to pronounce irrotational (audio)

, -shə-nᵊl\

Definition of irrotational

1 : not rotating or involving rotation

2 : free of vortices irrotational flow

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The first known use of irrotational was in 1875

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