sand crack sand crab • sand crater · · · Info · Definitions · Characters · · sand crack · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) a fissure in the wall of a horse's hoof often causing lameness. Synonyms: sand crack. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 k latin small letter k U+006B n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073