translocation
noun [ U ] biology specialized uk/ˌtrænz.ləʊˈkeɪ.ʃən/ us/ˌtrænz.loʊˈkeɪ.ʃən/
(IN PLANT)
（植物）输导作用
the movement of the liquid that carries the substances that a plant needs for life and growth through the plant
(GENETICS)
（染色体）易位
a genetic abnormality (= problem) in which material from a chromosome moves to another chromosome or is exchanged with material from it