Headword:
ilacatztli.
Principal English Translation:
a spiral, a conch, something rolled up
Attestations from sources in English:
ecailacatzcozcayo = "that which bears the spiral pattern of the wind"
ilacatzoa = to roll up, https://nahuatl.wired-humanities.org/content/ilacatzoa
tlamamatla ilacatztli = spiral staircase, https://nahuatl.wired-humanities.org/content/tlamamatla-ilacatztli