scotoma
scotoma[skɒˈtəʊmə, skə(ʊ)-](pl. scotomas 或 scotomata -mətə)- (Medicine)a partial loss of vision or blind spot in an otherwise normal visual field
(医)盲点;暗点
语源- mid 16th cent. (denoting dizziness and dim vision): via late Latin from Greek skotōma, from skotoun 'darken', from skotos 'darkness'
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