ocellation noun2 •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). — 1993 •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. — 2016 formsocellations