Search:
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
melatonin (n.)
1958, from Greek
melas
"black, dark" (see
melanin
) + ending from
serotonin
. So called because its secretion is inhibited by sunlight.
