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period of play
period of time
period piece
Periodate
Periodic
periodic acid
periodic apnea of the newborn
periodic breathing
Periodic comet
periodic event
Periodic function
periodic group
periodic law
periodic motion
periodic movement
periodic sentence
-- periodic table --
Periodical
periodical cicada
Periodical year
Periodicalist
Periodically
Periodicalness
Periodicity
Periodide
Periodontal
periodontal disease
periodontia
periodontic
periodontics
periodontist
periodontitis
Periodoscope
periodic table
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Noun
1.
periodic table
-
a
tabular
arrangement
of
the
chemical
elements
according
to
atomic
number
as
based
on
the
periodic
law
table
,
tabular
array
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