---
title: "Cardinal tree"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/Cardinal_tree"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T11:31:38.992204+00:00"
instance: "kb-cron"
---

A cardinal tree (or trie) of degree k, by analogy with cardinal numbers and by opposition with ordinal trees, is a rooted tree in which each node has k positions for an edge to a child. Each node has up to k children and each child of a given node is labeled by a unique integer from the set {1, 2, . . . , k}. For instance, a binary tree is a cardinal tree of degree 2.


== See also ==
Ordinal tree


== References ==