utri·cle /ˈjutrɪkəl/
  小囊,小胞,胞果
  utri·cle /ˈjutrɪkəl/ 名詞
  橢圓囊
  U·tri·cle n.
  1. A little sac or vesicle, as the air cell of fucus, or seaweed.
  2. Physiol. A microscopic cell in the structure of an egg, animal, or plant.
  3. Bot. A small, thin-walled, one-seeded fruit, as of goosefoot.
  4. Anat. A utriculus.
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  utricle
       n : a small pouch into which the semicircular canals open [syn:
           utriculus]