Zoosperm is a scientific term that refers to the motile male reproductive cells of most animals, including humans. However, there are several synonyms for the word zoosperm that are commonly used in different contexts. These include spermatozoa, sperm cells, spermatozoids, spermatazoa, and sperms. These terms are often used interchangeably in scientific research and medical literature to describe the same thing - the male gametes responsible for fertilization. While these synonyms have their specific contexts of use, they all refer to the same basic unit of fertility and are widely recognized in the scientific community.