dioptrical
English
Pronunciation
- IPA(key): /daɪˈɒptɹɪkəl/
Adjective
dioptrical (comparative more dioptrical, superlative most dioptrical)
- Alternative form of dioptric
- 1857, John Pringle Nichol, Cyclopedia of the Physical Sciences
- dioptrical principles
- 1857, John Pringle Nichol, Cyclopedia of the Physical Sciences