Definition of Castor
Cast´or
n.
1.
(Zool.)
A
genus
of
rodents
,
including
the
beaver
.
See
Beaver
.
2.
Castoreum
.
See
Castoreum
.
3.
A
hat
,
esp
.
one
made
of
beaver
fur
;
a
beaver
.
I
have
always
been
known
for
the
jaunty
manner
in
which
I
wear
my
castor
.
- Sir W. Scott.
4.
A
heavy
quality
of
broadcloth
for
overcoats
.
1.
See
Caster
,
a
small
wheel
.
1.
(Astron.)
the
northernmost
of
the
two
bright
stars
in
the
constellation
Gemini
,
the
other
being
Pollux
.
1.
(Min.)
A
variety
of
the
mineral
called
petalite
,
from
Elba
.
Related Words
Alpha
Geminorum
,
Gemini
,
multiple
star
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Casting of draperies
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castle in Spain
Castle in the air
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Castor and Pollux
Castor bean
Castor oil
Castor-oil plant
Castoreum
Castoridae
Castorin
Castoroides
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castrated
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