Definition of double bond
a
covalent
bond
which
involves
the
merging
of
orbitals
of
two
(
or
three
)
electrons
on
each
of
the
two
connected
atoms
,
thus
satisfying
two
(
or
three
)
units
of
valence
on
each
of
the
bonded
atoms
.
When
two
carbon
atoms
are
thus
bonded
,
the
bond
(
and
the
compound
)
are
said
to
be
unsaturated
.
See also:
Bond
Related Words
covalent
bond
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