Definition of Thorium
Tho´ri`um
n.
1.
(Chem.)
A
metallic
element
found
in
certain
rare
minerals
,
as
thorite
,
pyrochlore
,
monazite
,
etc
.,
and
isolated
as
an
infusible
gray
metallic
powder
which
burns
in
the
air
and
forms
thoria
; -
formerly
called
also
thorinum
.
Symbol
Th
.
Atomic
weight
232
.
0
.
Related Words
atomic
number
90,
metal
,
metallic
element
,
monazite
,
radiothorium
,
Th
,
thoriate
,
thorite
,
thorium-228
Search
Word:
Browse
Thomsonian
Thomsonianism
Thomsonite
Thong
Thong seal
Thooid
Thor
Thoracentesis
Thoracic
Thoracic duct
Thoracica
Thoracometer
Thoracoplasty
Thoracostraca
Thoracotomy
Thoral
Thorax
Thoria
Thoric
Thorite
Thorn
Thorn apple
Thorn broom
Thorn devil
Thorn hedge
Thorn hopper
Thorn-headed
Thorn-headed worm
Thornback
Thornbill
Thornbird
Thornbut
thornhead
Thornless
Thornset
Thorntail
Thorny
Thorny oyster
Thorny rest-harrow
Thorny trefoil
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
© 2009
Interapple, Inc.
Cover
