dissection (n.)youdaoicibaDictYouDict[dissection 词源字典]
1580s, from Middle French dissection, from Medieval Latin dissectionem (nominative dissectio), noun of action from past participle stem of Latin dissecare "cut in pieces," from dis- "apart" (see dis-) + secare "to cut" (see section).[dissection etymology, dissection origin, 英语词源]