MESOPTERYGIUM

Source: 567

‖Me‐sop′te‐ryg″i‐um (?), n. [[NL., fr. Gr. μέσοσ middle + � a fin.]] (Anat.) The middle one of the three principal basal cartilages in the fins of fishes. — ‖Me‐sop′ter‐yg″i‐al (#), a.