Synset:night blindness nyctalopia
Hypernyms:avitaminosis hypovitaminosis vision defect visual defect visual disorder visual impairment
Inherited Hypernyms:nyctalopiaavitaminosismalnutritiondeficiency diseasediseaseillnessill healthpathological statephysical conditionconditionstateattributeabstractionentity
Inherited Hypernyms:nyctalopiavisual impairmentdisabilityunfitnessill healthpathological statephysical conditionconditionstateattributeabstractionentity