obligate anaerobe obligate • obligated · · · Info · Definitions · Characters · · obligate anaerobe · · Text Common · · Latin · · Scripts 17 · · Length 6 · · Syllables Definitions · · · (noun) an organism that cannot grow in the presence of oxygen. Synonyms: obligate anaerobe. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074