"Descendant" refers to a person who is descended from a particular ancestor or group of ancestors. This term is often used in genealogy to trace family lineage and heritage. For example, a child is a descendant of their parents, and a grandchild is a descendant of their grandparents. In a broader context, the term can also apply to species in biology, where a descendant species evolves from a common ancestor. This concept is important in understanding evolution and the relationships between different organisms, such as how humans are descendants of earlier hominids.