This move works triceps, upper back, shoulder and chest muscles, and abdominals.
From the latimes.com
Don't push the forearm or wrist too far while you work on the biceps or triceps.
From the sacbee.com
Sheets left the game after the fifth inning with tightness in his right triceps.
From the jsonline.com
The 36-year-old lefty was bothered by triceps soreness early in spring training.
From the dailyherald.com
Defensive end Derrick Burgess aggravated his triceps strain and sat out practice.
From the sacbee.com
Ben Sheets has soreness in his triceps that caused him to leave his last start.
From the washingtonpost.com
Lackey probably will miss at least the first month with a strained right triceps.
From the news.enquirer.com
Smith has not played since Week 6 after a triceps tendon in his left arm was torn.
From the post-gazette.com
His physical therapists attache electrodes to his back, chest, biceps and triceps.
From the heraldtribune.com
More examples
Any skeletal muscle having three origins (but especially the triceps brachii)
The triceps brachii muscle (Latin for "three-headed arm muscle") is the large muscle on the back of the upper limb of many vertebrates. It is the muscle principally responsible for extension of the elbow joint (straightening of the arm).
(tricep) A supposed singular of triceps
Latin tres = 3, and caput = head; hence a 3-headed muscle.