Glossary · term

Black body

Thermodynamics

Aliases
blackbody, black-body
Domain
Thermodynamics

Definition

An idealised object that absorbs all radiation falling on it and emits a spectrum that depends only on its temperature. Stars, and the microwave background, come remarkably close.

Open on the Glossary shelf — the interactive card, the filters, and everything alongside it.

From the Glossary database in Notion, last edited 2026-08-17. This page is the row, rendered by the build; nothing on it is written by hand.