фронтальный означает в английский

frontal▼(of or relating to the forehead or frontal bone)
adjective
[UK: ˈfrʌn.tl̩] [US: ˈfrʌn.tl̩]

obverse▼(turned or facing toward the observer)
adjective
[UK: ˈɒb.vɜːs] [US: əb.ˈvɝːs]