unicellular Syllabification: (u·ni·cel·lu·lar)Pronunciation: /ˌyo͞onəˈselyələr/Definition of unicellular adjective Biology (of protozoans, certain algae and spores, etc.) consisting of a single cell. (of an evolutionary or developmental stage) characterized by the formation or presence of a single cell or cells. unicellular in other Oxford dictionaries Definition of unicellular in the British & World English dictionary
