Definition of amaurosis in English:
 amaurosis
nounˌamɔːˈrəʊsɪsˌæmɔˈroʊsəs
mass nounMedicine Partial or total blindness without visible change in the eye, typically due to disease of the optic nerve, spinal cord, or brain.
 Example sentencesExamples
-  Leber congenital amaurosis is an inherited disease that is believed to cause up to 20 percent of all cases of childhood blindness.
 -  Another popular writer of detective stories was Ernest Bramah, creator of the blind detective Max Carrados, sufferer of amaurosis.
 -  Other visual symptoms may include amaurosis fugax, diplopia and partial loss of vision.
 
Origin
  
Mid 17th century: from Greek amaurōsis, from amauroun 'darken', from amauros 'dim'.
   Definition of amaurosis in US English:
 amaurosis
nounˌæmɔˈroʊsəsˌamôˈrōsəs
Medicine Partial or total blindness without visible change in the eye, typically due to disease of the optic nerve, spinal cord, or brain.
 Example sentencesExamples
-  Leber congenital amaurosis is an inherited disease that is believed to cause up to 20 percent of all cases of childhood blindness.
 -  Another popular writer of detective stories was Ernest Bramah, creator of the blind detective Max Carrados, sufferer of amaurosis.
 -  Other visual symptoms may include amaurosis fugax, diplopia and partial loss of vision.
 
Origin
  
Mid 17th century: from Greek amaurōsis, from amauroun ‘darken’, from amauros ‘dim’.