Definition from Wiktionary, the free dictionary
Gallegan (plural Gallegans)
Usage notes 
- Galicians consider the term Gallegan much less preferable and correct than "Galician" because it is a second-hand translation based on the Spanish gallego.
Proper noun 
- The Galician language spoken in Galicia. Although this language sounds like a mixture of Spanish and Portuguese, it is an independent language that evolved directly from Latin.
the Galician language — see Galician