Radioactive symbol

U+2622

The radiation trefoil, created at the University of California, Berkeley in 1946. It is a real hazard sign, so avoid using it casually on safety materials.

Official name: RADIOACTIVE SIGN
Unicode block: Miscellaneous Symbols
Added in: Unicode 1.1
HTML
HTML hex
CSS content
JavaScript
UTF-8 bytes: E2 98 A2
Keywords: radioactive, sign, danger, hazard, caution, dangerous
Categories: Warning & danger

The Unicode standard defines this character, but your device’s fonts decide how it looks, so it may differ on other screens.

Data: Unicode 16.0, Emoji 16.0.

Radioactive symbol

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