Tra từ Snellen - Từ điển Oxford Learners Wordfinder Dictionary

Từ điển Oxford Learners Wordfinder Dictionary

Snellen

noun

Dutch ophthalmologist who introduced the Snellen chart to study visual acuity (1834-1908)
• Syn:
Hermann Snellen
• Instance Hypernyms:
ophthalmologist, eye doctor, oculist