1. Of northern United States and Canada
   - spruce squirrel, red squirrel, Sciurus hudsonicus, Tamiasciurus hudsonicus

Type of: tree squirrel

• OCR
• oct-
• octa-
• octad
• octadecanoic acid
• octagon
• octagonal
• octahedral
• octahedron
• octal
• octal digit
• octal notation
• octal number system
• octal numeration system
• octameter
• octane
• octane number
• octane rating
• octanedioic acid
• octangular
• Octans
• octant
• octave
• Octavian
• octavo