Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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No pronunciation record was provided for this word.
noun
The condition of perfect vision, where images are correctly brought to a focus on the retina.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable, usually
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
(ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: physical condition, physiological state, physiological condition
History
From Ancient Greek ἔμμετρος (émmetros, “in measure, proportioned”) + English -opia (“vision”).
Across languages
4 source translations are retained for this English entry.
