gristle Gristhorbia • gristliness · · · Info · Definitions · Synonyms · Characters · · gristle · · Text Latin · · Script 7 · · Length Definitions · · · (noun) tough elastic tissue; mostly converted to bone in adults. Synonyms: cartilage. · · Noun Definition 1 Synonyms · · · cartilage · · Synonym 1 Characters · · 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 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074