English
spiralian
From spiral + -ian.
A compound of spiral + -ian
Proto-Indo-European *sper- ‘to twist’
…
Ancient Greek σπεῖρα ‘wreath, coil, twist’
Latin spīra ‘a thing that is coiled, twisted, or wound’
Medieval Latin spiralis ‘spiraling’
Middle French spirale
English spiral
Today it means
noun Any animal belonging to the superphylum Spiralia, known for their spiral cleavage pattern.
Language periods are conventional ranges, not dates for this word.
Etymograph / spiralian