lo.bot.o.my HlE5bBt7E7mi, $-5bB:7tE- n [C] Br also leu.cot.o.my lju:9kBtYRYmi, $lu:9kA:YtR- medical a medical operation in which cuts are made in or near the front part of the brain, used in the past for the treatment of severe mental problems 脑白质切断术