from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A thin crisp cracker sprinkled with coarse salt.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A thin, crisp, salted, white-colored cracker, a soda cracker; the most common of all US crackers; (UK) soda biscuit.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a cracker sprinkled with salt before baking
Originally a US brand name, presumably salt + -ine. (Wiktionary)