# Hamiltonian spite

> English word · Noun

## Definitions
1. Behaviours occurring among conspecifics that have a cost for the actor and a negative impact upon the recipient.

## Etymology
Derived from a 1964 paper on genetics by W. D. Hamilton.

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