helicoid

adjective
he·​li·​coid | \ˈhe-lə-ˌkȯid, ˈhē-\
variants: or helicoidal \ˌhe-​lə-​ˈkȯi-​dᵊl, ˌhē-​ \

Definition of helicoid 

1 : forming or arranged in a spiral

2 : having the form of a flat coil or flattened spiral helicoid snail shell

First Known Use of helicoid

circa 1704, in the meaning defined at sense 1

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The first known use of helicoid was circa 1704

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More Definitions for helicoid

helicoid

adjective
he·​li·​coid | \ˈhel-ə-ˌkȯid, ˈhē-lə- \
variants: or helicoidal \ˌhel-​ə-​ˈkȯid-​ᵊl, ˌhē-​lə-​ \

Medical Definition of helicoid 

1 : forming or arranged in a spiral

2 : having the form of a flat coil or flattened spiral

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