ohm

noun

ˈōm 

: the practical meter-kilogram-second unit of electric resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

ohmic

ˈō-mik 

adjective

ohmically

ˈō-mi-k(ə-)lē 

adverb

Examples of ohm in a Sentence

Recent Examples on the Web

Its angled 42mm transducers mimic high-end speaker imaging, while its ultra-lightweight 150-ohm voice coil ensures distortion-free clarity across music and games. —Juhi Wadia, PC Magazine, 17 Apr. 2026

That's why speakers with lower impedance, rated in ohms, can generally be more difficult to amplify. —Ryan Waniata, Wired News, 1 Apr. 2026

In addition, the length will, in part, determine the necessary impedance, or maximum ohm load and resistance of a speaker cable. —Bestreviews, Mercury News, 9 Jan. 2026

Nominal 4 ohm impedance and 85 dB sensitivity means the Metas can handle a big-boy amp, but will do a fine job driven by a modestly powered integrated. —Robert Ross, Robb Report, 26 Mar. 2025

The process leads to a tin-gold alloy with 270 ohm-micrometer resistance and indium-gold with 190 ohm-micrometer. —IEEE Spectrum, 14 Dec. 2021

Word History

Etymology

Georg Simon ohm

First Known Use

1861, in the meaning defined above

Rhymes for ohm

• brome
• chrome
• comb
• combe
• crome
• dome
• foam
• gnome
• holm
• loam
• roam
• tome

Kids Definition

ohm

noun

ˈōm 

: a unit of electric resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

ohmic

ˈō-mik 

adjective

Medical Definition

ohm

noun

ˈōm 

: the practical mks unit of electrical resistance equal to the resistance of a circuit in which a potential difference of one volt produces a current of one ampere

ohmic

ˈō-mik 

adjective

Biographical Definition

Ohm

biographical name

ˈōm 

Georg Simon 1787–1854 German physicist