sac

英[sæk]美[sæk]

n.
1.（动植物组织中的）液囊

同：	[n.] pocket, pouch, sauk, theca

An air-filled sac or structure that aids in the flotation of an aquatic organism.
气囊水生动植物器官中用来帮助飘浮用的充满气体的囊或结构。收藏
amniocentesis is the removal of fluid from the amniotic sac.
羊膜穿刺术是从羊膜囊抽取羊水的技术。收藏
The peritoneal cavity is a closed sac
腹膜腔是一个封闭的囊腔。收藏
"a sac that is inserted into a body cavity or tube and distended with air or gas for therapeutic purposes, such as angioplasty."
出于治疗目的而插入体腔或体管内的充满空气或其他气体的囊,如血管成形术。收藏
A protective fluid-filled amniotic sac encloses and cushions the fetus.
充满液体的羊膜包裹并保护胎儿缓和震动。收藏

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an enclosed space
- the trapped miners found a pocket of air
[同] pocket, pouch, sac, sack
a case or sheath especially a pollen sac or moss capsule
[同] sac, theca

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