GNU Collaborative International Dictionary of English

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1.       
   ‖Macula , n.; pl. Maculae . [L., spot, stain, blot. See Mail armor, and cf. Mackle, Macule.]
   A spot, as on the skin, or on the surface of the sun or of some other luminous orb; called also macule.
   1913 Webster
   (Zool.) A rather large spot or blotch of color.
   1913 Webster