de·cus·sa·tion /ˌdɛkəˈseʃən, ˌdiˌkʌ-/
交叉
de·cus·sa·tion /ˌdɪ(ˌ)kəˈseʃən/ 名詞
De·cus·sa·tion n. Act of crossing at an acute angle, or state of being thus crossed; an intersection in the form of an X; as, the decussation of lines, nerves, etc.
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decussation
n : an intersection or crossing of two tracts in the form of the
letter X [syn: chiasma, chiasm]