crustal plate crustal movement • crustalogical · · · Info · Definitions · Synonyms · Characters · · crustal plate · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) a rigid layer of the Earth's crust that is believed to drift slowly. Synonyms: plate, crustal plate. · · Noun Definition 1 Synonyms · · · plate · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075