Synonyms for Shank (same or very similar meaning)
WordNet sense 1 (cylinder forming a long narrow part of something):
stemWordNet sense 2 (the narrow part of the shoe connecting the heel and the wide part of the sole):
waistWordNet sense 3 (lower part of the leg extending from the hock to the fetlock in hoofed mammals):
cannonFrom the ODE community, based on WordNetadd/edit