【医】 半数有效量

median toxic dose, TD50

KT50(=median knock down time)

median sacral crest

tuberculum impar, median tongue swelling; 又称“正中舌隆突”。

arteria sacralis mediana【解剖】;median sacral artery【解剖】

median

median effective dose

50% effective dose, ED50, median effective dose