# blackheart

> English word · Noun · frequency rank #96,786

## Definitions
1. A heart-shaped cherry with a very dark skin.
2. Any of various plant diseases that cause darkening of the central tissue.
3. A type of malleable cast iron with minimum tensile strength of 350 N/mm².
4. A cruel and remorseless person.

## Etymology
From black + heart.

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