relict

1.【地】残余;【古生物】残遗体;残遗种

2.〈古〉寡妇

1.a species of organism surviving long after the extinction of related species, or a once widespread natural population surviving only in isolated localities because of environmental changes

2.a mineral that did not change when the host rock metamorphosed

3.a remnant of a pre-existing land or rock formation left behind after a destructive event has taken place

1.surviving in its original form when other related organisms have become extinct or its environment has changed completely