sialolith

from The Century Dictionary.

• noun A salivary calculus.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Technically, a calculus in the salivary ducts causing an obstruction. There are others obstructions of the salivary ducts that may also be referred to as sialoliths, including infectious blockage, stenosis, etc. There are also other substances besides calcium that may be the cause of the obstruction.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a stone formed in the salivary gland