quword
趣词
Word Origins Dictionary
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
meson (n.)
[meson 词源字典]
subatomic particle, 1939, from Greek
mesos
"middle" (see
medial
(adj.)) + subatomic particle suffix
-on
. Earlier
mesotron
(1938). So called for being intermediate in mass between protons and electrons.
[meson etymology, meson origin, 英语词源]