interj. [ See O, interj. ] An exclamation expressing various emotions, according to the tone and manner, especially surprise, pain, sorrow, anxiety, or a wish. See the Note under O. [ 1913 Webster ]
prop. n. A resident of Ohio.
n. [ So called from the German electrician,
Ohm's law (Elec.),
n. [ Ohm + meter. ] (Elec.) An instrument for indicating directly the electrical resistance of a circuit in ohms. [ Webster 1913 Suppl. ]
interj. An exclamation of surprise, etc. [ 1913 Webster ]