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
terbium
noun
1.
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
atomic number 65
Tb