The Collaborative International Dictionary
Pleurostea
Pleurosteon \Pleu*ros"te*on\, n.; pl. L. Pleurostea, E. -ons. [NL., fr. Gr. ? a rib + ? a bone.] (Anat.) The antero-lateral piece which articulates the sternum of birds.
Wiktionary
pleurostea
n. (plural of pleurosteon English)