'atomic number 54' definitions:
Definition of '
atomic number 54
'
From:
WordNet
noun
A colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts [syn:
xenon
,
Xe
, atomic number 54]
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