Rhizopus is a genus of fungi that includes several species. Some synonyms for the word Rhizopus include bread mold, black bread mold, pin mold, and zygomycosis. Rhizopus is mostly found in soil, fruits, vegetables, and decaying matter, and can cause several infections in humans, especially those with weakened immune systems. The most common type of Rhizopus infection is called zygomycosis, or mucormycosis, which affects the sinuses and brain. Fortunately, there are antifungal medications available to treat these infections. While Rhizopus may not be the most well-known word, it is important to understand its synonyms and potential harm to humans in order to prevent the spread of infections.