# banana bracket

> English word · Noun

## Definitions
1. Either of the brackets (!| and |!), used in the notation for catamorphisms.

## Etymology
From the resemblance in shape to the fruit.

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