Order Amoebina is a class of free-living unicellular organisms that belongs to the phylum Amoebozoa. These organisms are characterized by their shapeless bodies and their ability to move by using pseudopodia. Although "Order Amoebina" is the preferred scientific term used to describe these organisms, there are several other synonyms that can be used interchangeably. These synonyms include "Amoebida," "Amoebidae," and "Amoebinae." Additionally, some scientists may use the term "amoebas" to refer to these organisms. Regardless of the specific term used, it is important to remember that Order Amoebina includes a diverse group of organisms that play important roles in the ecology of freshwater and soil ecosystems.