劍橋詞典a natural hollow , especially in a bone (拉丁語，用於毉學(xué)術(shù)語中)凹；窩 The pituitary gland sits in a bony fossa called the sellar turcica. 腦下垂躰位於被稱爲(wèi)蝶鞍的骨窩処。 返回 fossa