'extremely low frequency' definitions:
Definition of '
extremely low frequency
'
From:
WordNet
noun
Below 3 kilohertz [syn: extremely low frequency,
ELF
]
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