Xenoturbellida is a scientific term that refers to a small group of marine animals that lack some of the typical body features found in most animal species. These creatures are characterized by their simple anatomy and lack of a recognizable gut or even a true nervous system. Since the term "xenoturbellida" can be quite complex and scientific, it is useful to know some synonyms that can simplify its meaning. Some of the possible synonyms for this term include flatworm-like marine animals, simple-bodied sea creatures, and turbellarians. Although these synonyms may not be as specific as the original term, they can provide a clearer understanding of what xenoturbellida are like.