Ohm - A unit of measurement for Resistance, Reactance, or Impedance.

Ohm Meter - An apparatus that measures resistance.

Ohm's Law - A basic electrical formula that simply states that voltage is equal to electrical current multiplied by resistance, i.e.., V=IR

Open Circuit - A circuit that has a physical break or disconnection, whether intentional or accidental, in its electrical path.

Outlet - A female connector.