biloquialadj.

/bʌɪˈləʊkwɪəl/Etymology: < bi- comb. form 2 + -loquial, after colloquial.
a1810 C. B. Brown (1822) I. 135 The confession of my biloquial powers.
This entry has not yet been fully updated (first published 1887; most recently modified version published online March 2018).