Usually means: Relating to light or optics.
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We found 11 dictionaries that define the word OPTO:

General (7 matching dictionaries)
  1. opto-: Merriam-Webster
  2. Opto, opto: Wordnik
  3. opto-: Wiktionary
  4. opto-: Webster's New World College Dictionary, 4th Ed.
  5. opto-: Infoplease Dictionary
  6. OPTO, opto-: Dictionary.com
  7. opto, opto-: MyWord.info

Medicine (2 matching dictionaries)
  1. online medical dictionary (No longer online)
  2. opto-: Medical dictionary

Miscellaneous (2 matching dictionaries)
  1. OPTO: Acronym Finder
  2. AbbreviationZ (No longer online)

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Definitions from Wiktionary (OPTO)

▸ noun:  Initialism of one-person train operation.

Similar:
optical, polyphase, pyroelectric, nematic, subminiature, uncooled, ferrite, confocal, tunable, photolithographic, more...

Types:
photo, electro, thermo, magnetic, acoustic, piezoelectric, electromagnetic, laser, infrared, more...

Phrases:
opto electronics, opto isolator, Osram Opto Semiconductors GmbH, more...



▸ Words similar to OPTO

▸ Usage examples for OPTO

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▸ Popular adjectives describing OPTO

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▸ Rhymes of OPTO

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Similar:
optical, polyphase, pyroelectric, nematic, subminiature, uncooled, ferrite, confocal, tunable, photolithographic, more...

Types:
photo, electro, thermo, magnetic, acoustic, piezoelectric, electromagnetic, laser, infrared, more...

Phrases:
opto electronics, opto isolator, Osram Opto Semiconductors GmbH, more...



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