·noun One of the transverse scales on the tarsi and toes of birds; a scutella.
II. Scutellum ·noun A rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.
III. Scutellum ·noun The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum; a scutella. ·see Thorax.