sac

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. an enclosed space
- the trapped miners found a pocket of air
• Syn:
pouch, sack, pocket
• Hypernyms:
cavity, enclosed space
2. a case or sheath especially a pollen sac or moss capsule
• Syn:
theca
• Hypernyms:
covering, natural covering, cover
3. a structure resembling a bag in an animal
• Hypernyms:
cavity, bodily cavity, cavum
• Hyponyms:
yolk sac, vitelline sac, umbilical vesicle, vesicula umbilicus, amnion,
amniotic sac, amnios, chorion, coelenteron, air bladder, swim bladder,
float, air sac, saccule, sacculus, bladder, vesica,
acinus, bursa, cisterna, cistern, pouch, pocket,
vesicle, cyst, alveolus, air cell, pericardial sac

• Từ đồng nghĩa / Synonyms:
  Sauk, Sac, theca, pouch, sack, pocket