# modulus

> English word · Noun · IPA /ˈmɒdjʊləs/ · frequency rank #39,433

## Definitions
1. The base with respect to which a congruence is computed.
2. The absolute value of a complex number.
3. A coefficient that expresses how much of a certain property is possessed by a certain substance.
4. A scalar field controlling the shape and size of extra dimensions in a compactification.
5. An operator placed between two numbers, to get the remainder of the division of those numbers.

## Etymology
Learned borrowing from French module as Latin modulus. Doublet of module and mold.

## Easily confused with
- **modus** (https://plainspell.com/en/vs/modulus-vs-modus)
- **models** (https://plainspell.com/en/vs/models-vs-modulus)
- **module** (https://plainspell.com/en/vs/module-vs-modulus)
- **modules** (https://plainspell.com/en/vs/modules-vs-modulus)
- **modular** (https://plainspell.com/en/vs/modular-vs-modulus)

## Common misspellings (10)
`mdoulus`, `mmodulus`, `moddulus`, `modluus`, `modullus`, `modulsu`, `moduluss`, `moduuls`, `moudlus`, `omdulus`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/modulus