biohazard
What does biohazard mean?
The ☣️ biohazard emoji features the internationally recognized trefoil symbol used to warn of biological hazards, typically rendered in black against a bright yellow or orange background. Originally designed to flag dangerous biological substances, viruses, and medical waste in the real world, this symbol retains its literal warning status in the digital space. In digital communication, people frequently use this emoji to discuss pandemics, infectious diseases, and public health emergencies. Beyond actual medical or scientific contexts, it frequently appears in conversations about sci-fi movies, post-apocalyptic video games, and zombie outbreaks. It serves as a visual alarm bell, signaling that the topic at hand involves something contagious or hazardous.
Slang & Modern Usage
In internet slang, the ☣️ biohazard emoji has become the ultimate shorthand for "toxic." Gen Z and millennials frequently use it to label manipulative relationships, drama-filled group chats, or highly controversial opinions on platforms like Twitter and TikTok. If someone is exhibiting massive red flags, dropping this emoji is a humorous way to warn others to stay away. It is also commonly used to react to things that are metaphorically "hazardous" to one's health, such as an incredibly foul-smelling room, a disastrously bad outfit, or a cringeworthy social media post. In gaming communities, it is often dropped in the chat to describe a highly toxic or aggressive gaming lobby.
Emoji Combos
Platform Differences
Most major platforms display the black biohazard trefoil inside a bright yellow or orange circle, though some older operating systems render it as a standalone black symbol without a colored background.
Technical Information
| Unicode | U+2623 |
| HTML Entity | ☣ |
| CSS | \2623 |
| JavaScript | \u{2623} |
| Unicode Version | Unicode 1 |
| Status | Fully-qualified |