|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|1.||disguised or covered by or as if by a mask|
|2.||botany another word for personate|
Latent or hidden, as a symptom or disease.
Having masklike markings on the head or face.
Having the anatomy of the next developmental form outlined beneath the integument, as in certain insect pupae.