Dictionary.net

• A broad radiating muscle arising from the whole of the temporal fossa and extending to the coronoid process of the mandible.

1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.

• a broad radiating muscle arising from the whole of the temporal fossa and extending to the coronoid process of the mandible (anat.).

1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth