white matter
柯林斯词典
1. N the whitish tissue of the brain and spinal cord, consisting mainly of myelinated nerve fibres 白质 (Technical name substantia alba)→compare grey matter
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white matter
剑桥词典
- the pale tissue containing nerve fibres (= structures like threads ) found in the brain and spinal cord
白质（见于大脑和脊髓的淡色组织，内含丝状的神经纤维结构）
比较
grey matter 返回 white matter