Clostridium perfringens epsilon toxin is a bacterial toxin produced by the bacterium Clostridium perfringens, which causes epsilon toxin-mediated diseases in animals and humans. The word "toxin" can be synonymously replaced with the words poison, venom, and lethal substance. Similarly, the term "epsilon" can be interchanged with "E," "ɛ," and "fifth." Meanwhile, the word "Clostridium" can be substituted with its acronym "C." Other synonyms for "perfringens" are "perfringens-like," "anaerobic," and "Gram-positive." Lastly, "epsilon toxin-mediated diseases" can be replaced with "epsilon toxin-associated conditions," "epsilon toxin-induced illnesses," or "epsilon toxin-caused disorders." Synonyms help in enriching the description of a term and making it more comprehensive.