Spumavirinae

Spu·ma·vir·i·nae

(spū'mă-vir'i-nē),
Formerly a subfamily of viruses (family Retroviridae) that includes the foamy viruses (agents) of primates and other mammals; they are now placed in the genus Spumavirus. In common with other retroviruses, they possess RNA-dependent DNA polymerases (reverse transcriptase).
[L. spuma, foam]

Spumavirinae

a subfamily of viruses in the family Retroviridae.