metachronous

adjective
me·​tach·​ro·​nous | \ mə-ˈtak-rə-nəs How to pronounce metachronous (audio) \

Medical Definition of metachronous

1 : not functioning or occurring synchronously the metachronous beating of cilia
2 : occurring or starting at different times metachronous cancers of the large bowelJournal of the American Medical Association