extinction
English Dictionary
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Letter E
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extinction Definition
(n)
no
longer
in
existence
; "
the
extinction
of
a
species
"
(n)
no
longer
active
;
extinguished
; "
the
extinction
of
the
volcano
"
(n)
the
reduction
of
the
intensity
of
radiation
as
a
consequence
of
absorption
and
radiation
(n)
complete
annihilation
; "
they
think
a
meteor
cause
the
extinction
of
the
dinosaurs
"
(n)
a
conditioning
process
in
which
the
reinforcer
is
removed
and
a
conditioned
response
becomes
independent
of
the
conditioned
stimulus
(n)
the
act
of
extinguishing
;
causing
to
stop
burning
; "
the
extinction
of
the
lights
"
extinction Synonyms
defunctness
experimental extinction
extermination
extinction
extinguishing
quenching
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