Bos‐po″ri‐an (�), a. [L. Bosporus, G. Βόσποροσ, lit., ox-ford, the ox's or heifer's ford, on account of Io's passage here as a heifer; fr. βου̑σ ox, heifer + πόροσ ford.] Of or pertaining to the Thracian or the Cimmerian Bosporus.
The Alans forced the Bosporian kings to pay them tribute and exterminated the Taurians.
Tooke.