elicoidale

helical

adjective eh-lee-koh-ee-DAH-leh Rare

Origin: From Greek 'helix' (spiral) + '-oid'.

Also means

spiral-shaped

Usage Note

Elicoidale is a technical adjective describing anything shaped like a helix or spiral, used in engineering, mathematics, and anatomy: molla elicoidale (coil spring), scala elicoidale (spiral staircase), ingranaggio elicoidale (helical gear). It is invariable in gender: un percorso elicoidale, una molla elicoidale.

Examples

"La scala elicoidale saliva fino al tetto."

Natural Translation

The spiral staircase went up to the roof.

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