Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to triceps: Triceps Muscle


any muscle having three heads, or points of attachment, but especially the triceps brachii at the back of the upper arm. One head originates on the shoulder blade and two on the upper-arm bone, or humerus. Uniting part of the way down the arm, the heads swell into the belly, or muscle proper. This tapers to a tendon that rounds the elbow and attaches to the ulna, the larger of the two forearm bones. Since contraction of the triceps straightens the arm, the muscle is called an extensor. It also helps lock the elbow when the forearm pushes forward against resistance. The triceps works in coordination with a flexor muscle, the bicepsbiceps
, any muscle having two heads, or fixed ends of attachment, notably the biceps brachii at the front of the upper arm and the biceps femoris in the thigh. Originating in the shoulder area, the heads of the biceps merge partway down the arm to form a rounded mass of tissue
..... Click the link for more information.
 brachii of the upper arm.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a muscle that arises from three heads. The triceps muscle of the arm, situated on the posterior surface of the humerus, extends the forearm at the elbow joint. The triceps muscle of the calf is at the back of the leg below the knee; it consists of the two-headed gastrocnemius muscle and the one-headed soleus muscle, and it flexes the foot at the ankle joint.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


any muscle having three heads, esp the one (triceps brachii) that extends the forearm
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Part of the Triceps solution is the Mobile Distribution System (MDS), which automates the process of routine data collection and reporting for all yard and dock activities.
In our study, triceps, subscapular and suprailiac skinfolds were measured on the right side of the body in three sequences using Harpenden skinfold calipers (British Indicators, Luton, England) and British Indicators' definitions and techniques (5).
And since the triceps are often weaker then the biceps, you may find this exercise easier if you use a lighter weight on your back arm.
Cervical Nerves head and neck diaphragm deltoids, biceps wrist extenders triceps hand
Straighten arms, raising chest from floor and tightening pecs and triceps. Keep spine fixed and stable throughout movement by contracting abdominals.
Man maker, biceps curl to overhead press to triceps extension by Master Coach Mostafa Mersal at Calisthenics Park near SkyDive Dubai.
For evaluation anthropometric variables were selected and measured according to the International Biological Program (IBP): body height, body weight, four skinfolds (triceps, subscapular, supraspinale and calf), and two circumferences (waist and hip).
WEE THINKER ACROSS: 7 Triceps 9 Offal 10 Sit-up 11 Ontario 12 UFO 13 Arm in arm 16 Gondolas 17 Cue 19 Chateau 21 Posed 22 Relic 23 Saracen.
The most frequently involved tendons are the quadriceps tendon, the Achilles tendon, the patellar tendon, and the triceps tendon.
Targeted toning areas: core, biceps, triceps, shoulders, back