DIOPTRIC

\dɪˈɒptɹɪk], \dɪˈɒptɹɪk], \d_ɪ__ˈɒ_p_t_ɹ_ɪ_k]\
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  • A dioptre. See Dioptre.
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.
 
1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland
 
1916 - Appleton's medical dictionary
By Smith Ely Jelliffe

Word of the day

Snake's-head

  • Guinea-hen flower; -- so called in England because its spotted petals resemble the scales of a snake's head.
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