The enlarged head or foot of a timber, usually a vertical post, frequently used where two members, e.g. top-plate and tie-beam, were to be joined to the post. (Wood, Margaret. The English Medieval House, 412)
The skin and muscle under the lower jawbone. Both males and females have jowls, but in males the muscle is greatly enlarged, giving the jowls a puffy appearance. See the Anatomy page and the Sexing Iguanas page for photos.