Family Mycoplasmataceae is a group of bacteria that lacks a cell wall. Mycoplasma is a genus of bacteria belonging to this family, which can cause various diseases in humans and animals. Other related genera include Ureaplasma and Acholeplasma. These bacteria are often referred to as "tiny microbes" because of their small size and unique cell structure. The family Mycoplasmataceae is also known as the Mollicutes, which comes from the Latin words "mollis," meaning soft, and "cutis," meaning skin, to describe their soft and pliable cell membranes. Other synonyms for this family include wall-less bacteria, bacterial parasites, and smallest self-replicating organisms.