HF
English Dictionary
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Letter H
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HF Definition
(n)
a
gray
tetravalent
metallic
element
that
resembles
zirconium
chemically
and
is
found
in
zirconium
minerals
;
used
in
filaments
for
its
ready
emission
of
electrons
(n)
3
to
30
megahertz
HF Synonyms
atomic number 72
hafnium
HF
high frequency
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