Lewis & Short

Bĭōn (in the class. per. perh. more correctly Bio, analog. to Plato, Meno, Dio, etc.), ōnis, m., = [?*BI/WN (O( *BORUSQENI/THS ?], Strab.),

  1. I. a very witty philosopher of the Cyrenaic school, born at Borysthenes: facetum illud Bionis, Cic. Tusc. 3, 26, 62.
    Hence, Bĭōnēus, a, um, adj., Bionian, for witty, satirical, biting: hic delectatur iambis, Ille Bioneis sermonibus et sale nigro, Hor. Ep. 2, 2, 60 Orell. ad loc. (Bioneis sermonibus, lividis jocis, id est, satira, Acro).
  2. II. Bion Soleus or Soleusis, a writer on agriculture, Varr. R. R. 1, 1, 8; Plin. 6, 29, 35, § 178.