See Also: Pfund series(dictionary)
Series(money)
Series(medicine)
series(dictionary)
SERIES(finance)
series(dictionary)
Option series(money)
Series E bond(money)
Domestic series(money)
Series EE bond(money)

Pfund series (iou)



Pfund series noun phr. M20.
[A. Herman Pfund (1879-1949), US physicist.]
Physics. A series of lines in the infra-red spectrum of atomic hydrogen, between 7.46 and 2.28 micrometres.