paranasal sinus
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paranasal sinus Definition
(n)
any
of
the
paired
sinuses
in
the
bones
of
the
face
adjacent
to
the
nasal
cavity
that
are
lined
with
mucous
membrane
that
is
continuous
with
lining
of
the
nasal
cavities
paranasal sinus Synonyms
nasal sinus
paranasal sinus
sinus paranasales
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