hdtv hdl cholesterol • he · · · Info · Definitions · Synonyms · Characters · · hdtv · · Text Latin · · Script 4 · · Length 1 · · Syllables Definitions · · · (noun) a television system that has more than the usual number of lines per frame so its pictures show more detail. Synonyms: high-definition television, HDTV. · · Noun Definition 1 Synonyms · · · high-definition television · · Synonym 1 Characters · · d latin small letter d U+0064 h latin small letter h U+0068 t latin small letter t U+0074 v latin small letter v U+0076