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noun
An ophthalmic instrument that is used to measure the intraocular pressure using a balanced air pressure (sometimes achieved by blowing a puff of air at the cornea and measuring the subsequent flattening for the corneal surface)
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From pneumo- + tonometer.
