Definition from Wiktionary, the free dictionary
Proper noun 
- The Gaelic language of Scotland, spoken primarily in the northern and western parts of the country, with important communities in Glasgow and Edinburgh. Scottish Gaelic had its widest influence between 800 and 1200 CE, as place names throughout Scotland attest.
The Gaelic language of Scotland
See also 
- Wiktionary's coverage of Scottish Gaelic terms
- Appendix:Scottish Gaelic Swadesh list for a Swadesh list of basic vocabulary words in Scottish Gaelic