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By analogy to phyllotaxy, substituting the prefix chaeto- from Greek χαίτη (khaítē). By surface analysis, chaeto- -taxy (compare taxis).
Etymology from Wiktionary, CC BY-SA 4.0.
chaetotaxy
Today it means: The arrangement of, and study of arrangement of, chaetae (chitinous bristles) on a species or subspecies of animal, usually and especially an arthropod or annelid. Full definition →