Euglena Euglandina • Euglenaceae · · · Info · Definitions · Characters · · Euglena · · Text Latin · · Script 7 · · Length Definitions · · · (noun) minute single-celled green freshwater organism having a single flagella; often classed as algae. Synonyms: euglena. · · Noun Definition 1 Characters · · E latin capital letter e U+0045 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E u latin small letter u U+0075