\Zo`["o]*gl[oe]"a\, n. [NL., from Gr. zw^,on an animal + ? any glutinous substance.] (Biol.) A colony or mass of bacteria imbedded in a viscous gelatinous substance. The zo["o]gl[oe]a is characteristic of a transitory stage through which rapidly multiplying bacteria pass in the course of their evolution. Also used adjectively.