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materia medica
noun
materia medica
noun
materials
maternal aunt
noun
hazardous material
noun
A
substance,
natural
or
man-made,
which
is
intrinsically
dangerous
or
otherwise
poses
a
safety
hazard.
Examples
are
materials
which
are
explosive,
poisonous,
chemically
active
(including
acids
and
other
corrosives),
radioactive,
or
biologically
active
(including
human
blood
and
other
medical
waste).
maternal grandmother
noun
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