protozoon protozoology • protozoonal · · · Info · Definitions · Synonyms · Characters · · protozoon · · Text Latin · · Script 9 · · Length Definitions · · · (noun) any of diverse minute acellular or unicellular organisms usually nonphotosynthetic. Synonyms: protozoan. · · Noun Definition 1 Synonyms · · · protozoan · · Synonym 1 Characters · · n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 z latin small letter z U+007A