D defs.my
Entry 3 senses Webster, 1913

lifeline

· IPA /ˈlaɪfˌlaɪn/
01 n. The anem given to one of the creases on the palm; its length is said by palmists to indicate how long one will live.
  1. 1.
    The anem given to one of the creases on the palm; its length is said by palmists to indicate how long one will live.
  2. 2.
    A line or rope which raises or lowers a deep-sea diver.
  3. 3.
    A line from a vessel that people in a body of water can cling to to save themselves from drowning.
Syn. line of life, life line.