σφαίρειος
Could not find Σφαιρεῖς in Logeion dictionaries.
Σφαιρεῖς Proper-name noun masculine nominative plural of Σφαιρεύς
σφαίρ-ειος, α, ον,
- = σφαιρικός, Ps.-Alex.Aphr. in Metaph. 486.28.