from The Century Dictionary and Cyclopedia

  • n. In anatomy:
  • n. A triangular muscle of the thorax, on the inner surface of the front of the chest, under the sternum and parts of several ribs: more fully called triangularis sterni. Also sternocostalis.
  • n. The triangular muscle of the chin; the depressor anguli oris: more fully called triangularis menti. See cut under muscle.


Sorry, no etymologies found.


Wordnik is becoming a not-for-profit! Read our announcement here.


Log in or sign up to get involved in the conversation. It's quick and easy.