Definition of Er
n.
1.
the
chemical
symbol
for
erbium
,
a
rare
earth
element
.
It
has
atomic
number
68
and
an
atomic
weight
of
167
.
26
.
Related Words
atomic
number
68
,
erbium
,
fergusonite
,
gadolinite
,
metal
,
metallic
element
,
ytterbite
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Equity of redemption
Equivalence
Equivalency
Equivalent
Equivalently
Equivalue
Equivalve
Equivalvular
Equivocacy
Equivocal
Equivocal chord
Equivocally
Equivocalness
Equivocate
Equivocation
Equivocator
Equivocatory
Equivoque
Equivorous
Equus
Era
Eradiate
Eradiation
Eradicable
Eradicate
Eradication
Eradicative
Eragrostis
Eranthis
Erasable
Erase
Erased
Erasement
Eraser
Erasion
Erastian
Erastianism
Erasure
Erative
Erato
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