spiroid

adjective

spi·​roid

ˈspīˌrȯid

variants or less commonly spiroidal

(ˈ)spī¦rȯidᵊl

: resembling a screw : spiral in form

Word History

Etymology

spiroid from New Latin spiroïdes, from Greek speiroeidēs, from speira coil, twist + -oeidēs -oid; spiroidal International Scientific Vocabulary spiroid + -al

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