MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
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OD (lens prescription)
Abbreviation of 'oculus dexter.' Latin for 'right eye.' (The words 'dexterity' and 'dextrous' derive from 'dexter' since the right hand is usually more skillful than the left.) OS stands for 'oculus sinister' which is Latin for left eye.
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