# abmho

CEFR C2 · Noun

Source: https://englishreference.com/word/abmho
Updated: 2026-05-18

## Definition

a very large unit of electrical resistance. It is the opposite of the ohm and is used for measuring how much a material resists the flow of electricity.

For teachers: a unit of electrical resistance equal to one billion ohms. It is the reciprocal of the siemens and is used to describe extremely high resistance values.

## Examples

- The resistor had a value of one abmho.
- In high-voltage power transmission, engineers must account for the abmho of resistance to ensure minimal energy loss over long distances.
- The theoretical calculation of the material's resistance reached into the abmho range, indicating that it was nearly an insulator at the temperatures tested.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.