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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noun
An eye condition that manifests itself through nonspecific symptoms such as fatigue, red eyes, eyestrain, pain in or around the eyes, blurred vision, headache and occasional double vision.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, ophthalmology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a tiredness of the eyes caused by prolonged close work by a person with an uncorrected vision problem
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: eyestrain
Antonyms: none provided
Broader terms: fatigue, weariness, tiredness
History
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-) Ancient Greek σθένος (sthénos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek ἀσθενής (asthenḗs)der. English astheno- English -opia English asthenopia From astheno- (“loss of strength”) + -opia (“relating to the eyes”).
Across languages
5 source translations are retained for this English entry.
