| 单词 | protanopia |
| 释义 | protanopia —protanopic /proht'n op"ik/, adj. /proht'n oh"pee euh/, n. Ophthalm. a defect of vision in which the retina fails to respond to red or green. [1900-05; < NL; see PROT-, AN-1, -OPIA] |
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