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

Definition of "fundamental quantity" []

One of the four quantities that are the basis of systems of measurement (noun)

WordNet. Princeton University. 2010.

Words like "fundamental quantity"

amount length mass

measure period period of time

quantity temperature time period