Is there a term for immortality that only prevents death from old age? For example, the elves from The Lord of the Rings are "immortal", but only to the effects of dying from age. They can still be killed from wounds. So they are technically not immortal. In fact, the use of the term "immortal" permeates many facets of Science Fiction & Fantasy lore in a similar context (Justice League and Dungeons & Dragons come to mind).
Is there a more fitting term for this kind of longevity, perhaps used by other Sci-Fi/Fantasy works of which I am not aware? Specifically, I am looking for a term either from actual science or Sci-Fi/Fantasy that dictates the state of growing to maturity, and then no longer suffering from aging or be capable of dying to the effects of aging while still maintaining vulnerability to wounds.