劍橋詞典

happening outside the body in artificial conditions , often in a test tube
（生物過程或生物反應(yīng)）在體外（常指試管內(nèi)）進(jìn)行的
Scientists are studying these cells in vitro . 科學(xué)家們把這些細(xì)胞放在試管里進(jìn)行研究。
in vitro experiments 在試管中進(jìn)行的實(shí)驗(yàn) 返回 in vitro