'Lifelong' definitions:

Definition of 'lifelong'

From: WordNet
adjective
Continuing through life; "a lifelong friend"; "from lifelong habit"; "his lifelong study of Greek art" [syn: lifelong, womb-to-tomb]

Definition of 'Lifelong'

From: GCIDE
  • Lifelong \Life"long\ (l[imac]f"l[o^]ng`), a. [Life + long. Cf. Livelong.] Lasting or continuing through life. --Tennyson. [1913 Webster]