macula

A spot of a different colour, included in a plaga or macula.

In order then to avoid diplopia the macula lutea moves to where the retinal image is formed.

A roundish dot intermediate in size between an atom and a macula.

Gibbous: hump-backed; protuberant: said of a macula when it resembles a moon more than half full.

Macula: a colored mark larger than a spot; of indeterminate figure.

Reniform: kidney-shaped: applied to a macula approximating that shape, found at the end of median cell in many moths.

The macula rash was entirely unique so far as I knew, but a sketch greatly helped to fix it on one's memory.

Confluent: running together; as of two macula when united in one outline.

"Undique aspersa" and "Macula fusca notat medium utriusque lateris" are the printed emendations.