Dictionary Definition :
Definition[1]
:
foam : (nt.) pheṇa. (v.i.) pheṇam uppādeti or uppajjati. (pp.) uppannapheṇa.
Source
:
A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]