Definition of macula
2a
: an anatomical structure having the form of a spot differentiated from surrounding tissues
b
: a small yellowish area lying slightly lateral to the center of the retina that is made up mostly of cones (see cone entry 1 sense 3a), plays a key role in visual acuity, and has the fovea at its center
— called also macula lutea, yellow spot
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Merriam-Webster unabridged
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Time Traveler for macula
The first known use of macula was in the 14th century
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