Not Bayesian.

plural of baya

plural of Bayer designation

a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.

A type of chromatic button accordion developed in Russia in the early 20th century.

(Islam) A lecture.

plural of bayanist

plural of bayan

A person who plays the bayan.

(mineralogy) A polytype of gibbsite.