noninvasive

形容词 noninvasive:

1. relating to a technique that does not involve puncturing the skin or entering a body cavity

non.in.va.sive

adj.（形容词）
Not penetrating the body, as by incision or injection:
非侵害的：不刺入身体的，如通过切口或注射：
例句：
noninvasive surgery; a noninvasive diagnostic method.
非侵害的外科手术；非侵害的诊断方法

Not invading healthy tissue:
非扩散的：不侵袭健康组织的：
例句：
noninvasive cancer of the bladder.
不扩散的膀胱癌