hectometer hectolitre • hectometre · · · Info · Definitions · Synonyms · Characters · · hectometer · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) a metric unit of length equal to 100 meters. Synonyms: hectometre, hm. · · Noun Definition 1 Synonyms · · · hectometre · · Synonym 1 hm · · Synonym 2 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074