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The Epic Interactive Encyclopedia 1997
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regeneration
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1992-09-02
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In biology, regrowth of a new organ or tissue
after the loss or removal of the original. It
is common in plants, where a new individual
can often be produced from a `cutting' of the
original. In animals, regeneration of major
structures is limited to lower organisms;
certain lizards can regrow their tails if
these are lost, and new flatworms can grow
from a tiny fragment of an old one. In
mammals, regeneration is limited to the
repair of tissue in wound healing and the
regrowth of peripheral nerves following
damage.