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
respirator (n.)
1836, as an aid to breathing (originally a sort of gauze mask, agent noun from
respire
. As "machine to provide artificial respiration" from 1929.