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The Collaborative International Dictionary of English v.0.48 (gcide)

Regeneration \Re*gen`er*a"tion\ (-?"sh?n), n. [L. regeneratio:
cf. F. r['e]g['e]neration.]
1. The act of regenerating, or the state of being
regenerated.
[1913 Webster]

2. (Theol.) The entering into a new spiritual life; the act
of becoming, or of being made, Christian; that change by
which holy affectations and purposes are substituted for
the opposite motives in the heart.
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He saved us by the washing of regeneration, and
renewing of the Holy Chost. --Tit. iii. 5.
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3. (Biol.) The reproduction of a part which has been removed
or destroyed; re-formation; -- a process especially
characteristic of a many of the lower animals; as, the
regeneration of lost feelers, limbs, and claws by spiders
and crabs.
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4. (Physiol.)
(a) The reproduction or renewal of tissues, cells, etc.,
which have been used up and destroyed by the ordinary
processes of life; as, the continual regeneration of
the epithelial cells of the body, or the regeneration
of the contractile substance of muscle.
(b) The union of parts which have been severed, so that
they become anatomically perfect; as, the regeneration
of a nerve.
[1913 Webster]