2. Proper noun. The northern half of the state of California, generally split from Southern California by the Tehachapi mountain range. ¹
3. Abbreviation. A portmanteau of '''Nor'''thern and '''Cal'''ifornia (''Nor''+''Cal''): '' '''Norcal''' '' ¹
4. Noun. (alternative form of Norcal) ¹
¹ Source: wiktionary.com