AMEBA is validvalid

amoeba [n AMEBAE, AMEBAS] : AMEBAN [adj], AMEBIC [adj], AMEBOID [adj]

5,696 of 196,601 in NWL2023·also valid in CSW24

(Greek) a one-celled animal of ever-changing shape, also AMOEBA [n AMEBAS or AMEBAE]