| sial | (noun) the granitelike rocks that form the outermost layer of the earth's crust; rich in silicon and aluminum | - |
|---|
| sialadenitis | (noun) inflammation of the salivary glands | - |
|---|
| sialolith | (noun) a stone formed in the salivary gland | Synonyms: salivary calculus |
|---|
| siamang | (noun) large black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web | Synonyms: Hylobates syndactylus, Symphalangus syndactylus |
|---|
| siamese | (noun) an inlet with two or more couplings to which a hose can be attached so that fire engines can pump water into the sprinkler system of a building | Synonyms: siamese connection |
|---|