noun one of the transverse scales on the tarsi and toes of birds; a scutella.
2. scutellum ·noun a rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.
3. 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.