ocellation

Etymology

From Latin ocellus (“little eye”), from oculus (“eye”) + -ation.

Why this word is great

OCELLATION — [Noun] The development or presence of eye-like markings, as seen on the wings of butterflies or the tails of peacocks. From the Latin ocellus ("little eye"), from oculus ("eye") + the suffix -ation to denote process or pattern. Unlike "ocellus" (which names a single marking) or "eyespot" (a vaguer term unmoored from evolutionary significance), ocellation describes the deliberate artifice of nature—a calculated deception, a feigned gaze. It is the hypnotic shimmer of a peacock’s tail fanning open, the false stare of a moth’s wing startling predators, the uncanny precision of a pattern that whispers look back. Evolution’s sleight of hand, turning decoration into defense.

noun

The development of eye-like markings, such as those on the wing of a butterfly or tail of a peacock.“In Pararge aegeria, increased dorsal hindwing ocellation (i.e., four spots) occurs in mid-summer (Parker, 1984; Shreeve, 1987).”
An eye-like marking; ocellus.“All that is left of the omnidirectional ball of intense eyes is the dual colour of the ocellations and the brilliant pattern they make, a fascinating, silky fan.”