What is the definition of Periscopic spectacles? | Dictionary.net

PERISCOPIC SPECTACLES

\pˌɛɹɪskˈɒpɪk spˈɛktəkə͡lz], \pˌɛɹɪskˈɒpɪk spˈɛktəkə‍lz], \p_ˌɛ_ɹ_ɪ_s_k_ˈɒ_p_ɪ_k s_p_ˈɛ_k_t_ə_k_əl_z]\

Definitions of PERISCOPIC SPECTACLES

1895 - Glossary of terms and phrases

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Those furnished with meniscus lenses to increase the distinctness of vision when objects are viewed obliquely.

1895 - Glossary of terms and phrases
By Henry Percy Smith

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