amaurosis

noun
am·​au·​ro·​sis | \ ˌa-mȯ-ˈrō-səs How to pronounce amaurosis (audio) \
plural amauroses\ ˌa-​mȯ-​ˈrō-​ˌsēz How to pronounce amaurosis (audio) \

Definition of amaurosis

: partial or complete loss of sight occurring especially without an externally perceptible change in the eye

Other Words from amaurosis

amaurotic \ ˌa-​mȯ-​ˈrä-​tik How to pronounce amaurosis (audio) \ adjective

Examples of amaurosis in a Sentence

Recent Examples on the Web Both volunteers had suffered from LCA, or Leber congenital amaurosis, a severe vision impairment. Joshua Hawkins, BGR, 26 Jan. 2022 In previous studies, researchers have been able to treat a genetic form of blindness called Leber congenital amaurosis, by fixing a faulty gene that would otherwise cause photoreceptors to gradually degenerate. BostonGlobe.com, 24 May 2021 Ternent was diagnosed with leber congenital amaurosis as a child, a rare condition caused by a pair of faulty copies of the RPE65 gene. orlandosentinel.com, 16 May 2021 One of the diseases her team has focussed on is Laber congenital amaurosis, or LCA, which can be identified and diagnosed in infants. Science, 3 Dec. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. Marilynn Marchione, USA TODAY, 4 Mar. 2020 The people in this study have Leber congenital amaurosis, caused by a gene mutation that keeps the body from making a protein needed to convert light into signals to the brain, which enables sight. NBC News, 4 Mar. 2020 Last July, the pharmaceutical companies Editas Medicine in Cambridge, Massachusetts, and Allergan in Dublin launched a trial to treat the genetic disorder Leber congenital amaurosis 10, which can cause blindness, by editing eye cells. Heidi Ledford, Scientific American, 7 Jan. 2020 The blindness study is for people with one form of Leber congenital amaurosis. Washington Post, 25 July 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'amaurosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of amaurosis

circa 1657, in the meaning defined above

History and Etymology for amaurosis

borrowed from New Latin amaurōsis, borrowed from Greek amaúrōsis "dimming of sight, loss of sight without a visible cause," from amaurō-, variant stem of amaroún "to make dim or faint, weaken, impair" (verbal derivative of amaurós "dim, faint, having little or no sight," of uncertain origin) + -sis -sis

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Time Traveler for amaurosis

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The first known use of amaurosis was circa 1657

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Dictionary Entries Near amaurosis

amatungula

amaurosis

amaurotic idiocy

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Cite this Entry

“Amaurosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amaurosis. Accessed 16 Aug. 2022.

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More Definitions for amaurosis

amaurosis

noun
am·​au·​ro·​sis | \ ˌam-ȯ-ˈrō-səs How to pronounce amaurosis (audio) \
plural amauroses\ -​ˌsēz How to pronounce amaurosis (audio) \

Medical Definition of amaurosis

: partial or complete loss of sight occurring especially without an externally perceptible change in the eye

Other Words from amaurosis

amaurotic \ -​ˈrät-​ik How to pronounce amaurosis (audio) \ adjective

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