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The radioactive emoji (☢️) features a bold black symbol within a yellow triangle, representing the presence of radiation and caution against potential danger. Often used in discussions about nuclear energy, science fiction, or health risks, this emoji carries a weighty cultural significance, sometimes symbolizing more than just literal radiation—it can evoke themes of transformation and destruction. In pop culture, it appears in contexts like blockbuster movies or video games, heightening tension. Interestingly, it can also serve as a playful warning in humorous contexts, like a "toxic" relationship remark. The emoji version is 1, released in 2015.