Related Clues:

• High school subj.
• Back muscle, familiarly
• Chest muscle
• Back muscle, for short
• 50 degrees, say: Abbr.
• Back muscle, briefly
• Ancient lang.
• It's 0 deg. at the equator
• Paint base
• It's perpendicular to long.
• Chest muscle, for short
• Cartographic fig.
• Muscle
• Global positioning datum: Abbr.
• Global positioning fig.