# residuum

> English word · Noun · IPA /ɹɛˈzɪ.dju.ʌm/

## Definitions
1. The residue, remainder or rest of something.
2. The solid material remaining after the liquid in which it was dissolved has been evaporated; a residue.
3. A binary function from [0,1] × [0,1] to [0,1] which is defined in terms of the t-norm as follows: x→y= sup z|z*x⩽y, where * denotes the t-norm function and sup denotes the supremum.
4. The residue of an estate.

## Etymology
From Latin residuum. Doublet of residue.

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