dioptrikus (dioptricus) betyr engelsk

dioptric▼adjective
[UK: daɪ.ˈɒp.trɪk] [US: daɪ.ˈɑːp.trɪk]

dioptrical▼adjective
[UK: dɪˈɒptrɪkəl] [US: dɪˈɑːptrɪkəl]