See Also: platysma(medicine)
platysma(dictionary)
musculus platysma(medicine)
musculus platysma myoides(medicine)

platysma (iou)



platysma noun. . L17.
[mod. Latin, from Greek platusma flat piece, plate, from platunein widen, from platus broad, flat.]
Anatomy. A thin broad layer of muscle fibres extending from the collar-bone to the angle of the jaw.