ASTIGMATISM as NOUN

1. Meaning
   • (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
   Synonym(s)
   • astigmia (what does astigmia mean?)
   Hypernyms(s) astigmatism is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • condition (what does condition mean?)
   • status (what does status mean?)
   Antonym(s)
   • stigmatism (what does stigmatism mean?)
2. Meaning
   • (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea
   Synonym(s)
   • astigmia (what does astigmia mean?)
   Hypernyms(s) astigmatism is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • ametropia (what does ametropia mean?)
   Hyponym(s)
   • keratectasia (what does keratectasia mean?)
   • keratoconus (what does keratoconus mean?)