utricle

n. [ L. utriculus a little womb, a calycle, dim. of uter, utris, a bag or bottle made of an animal's hide: cf. F. utricule. ] [ 1913 Webster ]

1. A little sac or vesicle, as the air cell of fucus, or seaweed. [ 1913 Webster ]

2. (Physiol.) A microscopic cell in the structure of an egg, animal, or plant. [ 1913 Webster ]

3. (Bot.) A small, thin-walled, one-seeded fruit, as of goosefoot. Gray. [ 1913 Webster ]

4. (Anat.) A utriculus. [ 1913 Webster ]