In English, the adjective circular is used for a circle, and the adjective elliptical for an ellipse.

Similarly, the adjective helical is used for a helix, but a helix is 3-dimensional.

What is the corresponding adjective for a spiral?

1 Answer 1


The word spiral is in fact an adjective, as cited in the Cambridge English dictionary. It so happens that it can also be used as a noun and a verb,

  • From your feedback, I have rephrased the question to find precedents in formal writing. Please have a look. english.stackexchange.com/questions/606072/… Apr 13, 2023 at 22:51
  • I don’t know exactly how things work around here, but you asked twice (don’t do that), had different answers at both, had both questions variously closed and reopened, and here we are: Spiral is the adjective you’re looking for. Kinda circular. Apr 15, 2023 at 3:06
  • @TinfoilHat, your confusion is indeed due to the quick closing, then re-opening, of this original question. The closure was not due to a previous question or answer here. When this question was closed, I realized I would not get answers to it, so I asked instead for an expression suitable for use in formal writing. Apr 17, 2023 at 19:46

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