1838, from proto- + Greek zoe "life" (see zoo) + -ic.

Online Etymology Dictionary, © 2010 Douglas Harper

Examples from the Web for protozoic

Historical Examples of protozoic

  • Probably you will remember that during the protozoic period, the inhabitants of the Earth were all deaf, dumb, and sexless.


    Camille Flammarion

  • The Sponges are a side-issue, or cul de sac, from the Protozoic world, and do not lead on to the higher.