What is resembling an amoeba; amoeba-shaped; changing in shape like an amoeba. Amoeboid movement, movement produced, as in the amoeba, by successive processes of prolongation and retraction called?

amoebiform — Resembling an amoeba; amoeba-shaped; changing in shape like an amoeba. Amoeboid movement, movement produced, as in the amoeba, by successive processes of prolongation and retraction. (Webster's 1913.)

Sources