irrotational

adjective

ir·​ro·​ta·​tion·​al ˌir-(r)ō-ˈtā-sh(ə-)nəl 

1

: not rotating or involving rotation

2

: free of vortices

irrotational flow

Word History

First Known Use

1875, in the meaning defined at sense 1

Rhymes for irrotational

• aspirational
• avocational
• calculational
• combinational
• computational
• conformational
• confrontational
• congregational
• conversational
• correlational
• deformational
• derivational