单词：ostia
[医] 口, 门口
pl. of Ostium
词型变化：名词复数形式 : ostias
ostium的用法和样例：
词汇搭配
- aortic ostium主动脉口
经典引文
At open-heart surgery..ostium primum and secundum defects were corrected.
出自：Journal of Pediatrics