spiraling vs helical

spiraling and helical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spiraling	No	Yes	No	No
helical	No	Yes	No	No

As adjectives, spiraling and helical are synonyms defined as:

Other synonyms of spiraling include coiling, spiral, spiralling, turbinate, volute, voluted, whorled.

spiraling (adjective)	helical (adjective)
in the shape of a coil	in the shape of a coil