phytolith From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounA small particle of silica or mineral that occurs in many plants. Related wordsSynonymsopalphytolitecystolithrhizolithfecalithpyrophyllitepolylithioniteoolithcoccolithfibrolitephyllitepisolithnanolithtypolitelithocytesilicifier References Wiktionary — phytolith Wikipedia — phytolith