macula

noun

mac·​u·​la ˈma-kyə-lə How to pronounce macula (audio)
plural maculae ˈma-kyə-ˌlē How to pronounce macula (audio) -ˌlī How to pronounce macula (audio) also maculas
1
: spot, blotch
especially : macule
2
a
: 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

macular adjective

Examples of macula in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the other form, abnormal blood vessels growing behind the retina damage the macula by leaking blood into it. Ben Coxworth, New Atlas, 18 Jan. 2025 This treatment is more likely to be used when blood vessel growth is limited to a compact area in the eye, away from the center of the macula, that can be easily targeted with the laser. Ed Masley, The Arizona Republic, 5 Dec. 2024 Wet macular degeneration occurs when abnormal blood vessels develop underneath the retina and macula. Ed Masley, The Arizona Republic, 5 Dec. 2024 These carotenoids specifically accumulate in a part of the retina called the macula. Jillian Kubala, Health, 31 Oct. 2024 See all Example Sentences for macula 

Word History

Etymology

Middle English, borrowed from Latin, "stain, spot, blemish, one of the interstices of a net," of uncertain origin

Note: If macula goes back to *sma-tlā, then *sma- may represent an Indo-European base *smh1- seen in Greek smáō, smân "to cleanse, wipe clean," smêma "ointment."

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of macula was in the 15th century

Dictionary Entries Near macula

Cite this Entry

“Macula.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macula. Accessed 29 Jan. 2025.

Medical Definition

macula

noun
mac·​u·​la ˈmak-yə-lə How to pronounce macula (audio)
plural maculae -ˌlē How to pronounce macula (audio) -ˌlī How to pronounce macula (audio) also maculas
1
: a spot or blotch
especially : macule sense 2
2
: an anatomical structure having the form of a spot differentiated from surrounding tissues: as
b
: a small yellowish area lying slightly lateral to the center of the retina that is made up mostly of cones, plays a key role in visual acuity, and has the fovea at its center

called also macula lutea, yellow spot

More from Merriam-Webster on macula

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