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plural maculae, from Latin macula "spot, stain," used of various spots (sunspots, markings on minerals, etc.), of uncertain origin. Especially the macula lutea in the eye.
macula mac·u·la (māk'yə-lə)
n. pl. mac·u·las or mac·u·lae (-lē')
Also mac·ule (-yōōl') A spot, stain, or blemish, especially an area of discoloration on the skin caused by excess or lack of pigment.
A small area distinguishable from the surrounding tissue.
The macula lutea.