tonoplast

ton o plast |ˈtänəˌplast, ˈtō -ˈtɑnəˌplæst | ▶noun Botany a membrane that bounds the chief vacuole of a plant cell. ORIGIN late 19th cent.: from Greek tonos ‘tension, tone ’ + plastos ‘formed. ’

tonoplast

tonoplast |ˈtəʊnə (ʊ )plast, -plɑːst | ▶noun Botany a membrane which bounds the chief vacuole of a plant cell. ORIGIN late 19th cent.: from Greek tonos ‘tension, tone ’ + plastos ‘formed ’.