tricep

Back-formation from triceps. In Latin, triceps is both singular and plural.

tricep (plural triceps)

1. (nonstandard) A triceps.
   • 2016 August 10, Spring Hill Fitness, “Supersetting For Better Workouts”, in Spring Hill Fitness‎^[1]:

     An example would be cable curls supersetted with tricep pushdowns, or leg extensions supersetted with leg curls.

• bicep

• Petric, picter, pierc't