Definition of opera glasses in English:
Small binoculars for use at the opera or theatre.
- People brought binoculars and opera glasses to get a better look.
- Petzval also perfected the telescope and designed the opera glasses.
- Galileo's telescope was similar to a pair of opera glasses in that it used an arrangement of glass lenses to magnify objects.
Definition of opera glasses in:
- US English dictionary
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