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Multi-word Results
| air sac |
an air-filled space or cavity in a living organism, esp. any of the ends of certain bronchial tubes in a bird's body that connect with the larger body cavity and assist in breathing. |
| cul-de-sac |
a passage whose only exit is the entrance, such as a dead-end street. [2 definitions] |
| egg sac |
the pouch or cocoon in which many types of spiders deposit their eggs. [2 definitions] |
| yolk sac |
a membranous sac that nourishes the embryos of primitive mammals, bony fishes, sharks, reptiles, and birds. [2 definitions] |
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