Pbm

play by mail. See play by electronic mail.
prescription benefit manager

Read Also:

Pbook
[pee-boo k] /ˈpiˌbʊk/ noun 1. a printed book. Compare . noun printed book; a book printed on paper; cf. e-book See e-book
Pbo
paperback original
P-book
[pee-boo k] /ˈpiˌbʊk/ noun 1. a printed book. Compare . noun printed book; a book printed on paper; cf. e-book See e-book