gas·troc·ne·mi·us 
(găs′trŏk-nēmē-əs, găs′trə-)
(găs′trŏk-nēmē-əs, găs′trə-)n. pl. gas·troc·ne·mi·i (-mē-ī′)
The largest, most prominent muscle of the calf of the leg, the action of which extends the foot and bends the knee.
[New Latin gastrocnēmius, from Greek gastroknēmiā, calf of the leg : gastro-, belly (from its bellylike shape); see GASTRO- + knēmē, leg.]
- ballistically
- ballistician
- ballistic missile
- ballistics
- ballistocardiogram
- ballistocardiograph
- ballistocardiography
- ball joint
- ball lightning
- ball of fire
- ball of wax
- ballon
- ballonet
- balloon
- balloon angioplasty
- balloon flower
- balloonist
- balloon mortgage
- balloon payment
- balloon sail
- balloon tire
- balloon vine
- ballot
- ballot box
- balloter