anteriorityn.先(在前面)anterioradj.前面的；前部的；较早的anterior crural nerve[医] 股神经anterior bony ampulla前骨壶腹anterior sclerectasia前巩膜膨胀anterior lacrimal sac前泪囊anterior presentation头前置anterior pharyngotomy[医] 咽上切开术anterior costal facet肋结节关节面anterior lens capsule晶状体囊前部anterior ethmoid vein筛前静脉anterior notch of ear耳前切迹