\A*m[oe]"bi*form\, Amoeboid \A*m[oe]"boid\, a. [Am[oe]ba + -form or -oid.] (Biol.) Resembling an am[oe]ba; am[oe]ba-shaped; changing in shape like an am[oe]ba. {Am[oe]boid movement}, movement produced, as in the am[oe]ba, by successive processes of prolongation and retraction.