Webster’s Revised Unabridged Dictionary · 1913
Vibrio
Vib′ri·o, n.; pl. E. Vibrios (#), L. Vibriones (#). [NL., fr. L. vibrare to vibrate, to move by undulations.] (Biol.) A genus of motile bacteria characterized by short, slightly sinuous filaments and an undulatory motion; also, an individual of this genus.