NIGHT BLINDNESS

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does night blindness mean? 

• NIGHT BLINDNESS (noun)
  The noun NIGHT BLINDNESS has 1 sense:

1. inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

  Familiarity information: NIGHT BLINDNESS used as a noun is very rare.

 Dictionary entry details 

• NIGHT BLINDNESS (noun)

Sense 1

Meaning:

Inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

Classified under:

Nouns denoting stable states of affairs

Synonyms:

moon blindness; night blindness; nyctalopia

Hypernyms ("night blindness" is a kind of...):

avitaminosis; hypovitaminosis (any of several diseases caused by deficiency of one or more vitamins)

vision defect; visual defect; visual disorder; visual impairment (impairment of the sense of sight)

 Context examples 

An X chromosome-linked abnormality characterized by atrophy of the choroid and degeneration of the retinal pigment epithelium causing night blindness.

(Choroideremia, NLM, Medical Subject Headings)