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We found 11 dictionaries with English definitions that include the word opsiometer:
Click on the first link on a line below to go directly to a page where "opsiometer" is defined.

General (10 matching dictionaries)

1. opsiometer: Collins English Dictionary [home, info]
2. opsiometer: Wordnik [home, info]
3. opsiometer: Wiktionary [home, info]
4. Opsiometer, opsiometer: Dictionary.com [home, info]
5. Opsiometer: Online Plain Text English Dictionary [home, info]
6. opsiometer: Webster's Revised Unabridged, 1913 Edition [home, info]
7. Opsiometer: AllWords.com Multi-Lingual Dictionary [home, info]
8. opsiometer: Free Dictionary [home, info]
9. opsiometer: The Phrontistery - A Dictionary of Obscure Words [home, info]
10. Opsiometer: Dictionary/thesaurus [home, info]

Medicine (1 matching dictionary)

11. opsiometer: online medical dictionary [home, info]

Quick definitions from Wiktionary (opsiometer) ▸ noun:  An old instrument for measuring vision and determining the focal length of a lens that can correct an individual's imperfect eyesight. ▸ Words similar to opsiometer ▸ Usage examples for opsiometer ▸ Popular adjectives describing opsiometer ▸ Words that often appear near opsiometer ▸ Rhymes of opsiometer ▸ Invented words related to opsiometer