biforus
Could not find bifora in Logeion dictionaries.
bifora feminine nominative singular, neuter nominative plural, feminine vocative singular, neuter vocative plural, neuter accusative plural, feminine ablative singular of biforus
bĭfŏrus, a, um, v. biforis.
biforus, a, um (bis u. foris), zweiflügelig, ostia, Vitr. 4, 6. § 6.
bĭfŏrus, a, um, c. biforis : Vitr. Arch. 4, 6, 6.