“Undersurface” in Japanese
Short answer
Undersurface in Japanese is “下面” (kamen). Full meaning: underside, undersurface, inferior surface.
Other ways to say “Undersurface” in Japanese
尻
shiri buttocks, behind, rump, bottom, hips; undersurface, bottom; last place, end
ジリ
jiri buttocks, behind, rump, bottom, hips; undersurface, bottom; last place, end
裏
ura opposite side, bottom, other side, side hidden from view, undersurface, reverse side; rear, back, behind; lining, inside
臀
shiri buttocks, behind, rump, bottom, hips; undersurface, bottom; last place, end
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