The term "pseudo-science" refers to practices or beliefs that are not based on evidence or are not scientifically proven. There are several synonyms for this term, including quackery, fraud, charlatanism, deceit, pseudo-knowledge, and snake oil. These terms are often used to describe alternative medical practices and products that claim to cure diseases but have no scientific basis. Pseudo-science also includes paranormal phenomena such as psychic abilities, astrology, and spiritualism. It is important to distinguish between genuine scientific research and pseudoscience since the latter can cause harm by promoting unproven or dangerous treatments. It is essential to be skeptical and critical of claims that lack scientific evidence.