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Glite Dictionary
megohm

megohm

8.2
A unit that measures how much a circuit stops electric current, equal to one million ohms
  • noun
  • /ˈmɛɡoʊm/
  • Specialized
translation icon : megohm
  • The device has a standard resistance range of 1 k ohms to 1 megohm, with an absolute minimum resistance of 2 ohms maximum.

Examples

  • The insulation on the wire tested at 100 megohms, indicating it was in good condition.

  • The multimeter indicated a resistance of 1 megohm, which is suitable for most electronic applications.

  • Class 100 Cleanroom: 18 megohm d.i. water

    Academic text (1997)

  • But you can incorporate a roughly 100 megohm but quite non-linear resistance in the form of a P-channel FET.

    Blog text (16)

  • The Model SP-8 sensor processor monitors, stores, and displays on the computer sensor's resistances up to 20 megohms through the PC's RS-232 port.

    Academic text (1995)

  • For safety reasons, the circuit must have a resistance of at least 10 megohms to prevent electric shocks.

How High

megohm
  • Specialized
8.2
electric resistance
  • Specialized
3.7
ohm
  • Specialized
3 6.1
milliohm
  • Specialized
6.3

Surface Forms

megohm singular
megohms plural

Morphology

megohm = ohm (transparent) = mega + ohm

The meaning is directly compositional: 'mega-' means one million and 'ohm' is the resistance unit, so the whole word means one million ohms.

Etymology

The word megohm comes from the prefix mega- meaning 'million', as in megabyte, and ohm, the unit for electrical 'resistance' named after the scientist Georg Ohm. So, a megohm is a measure of resistance equal to one 'million' ohms.