[ロシュげんかい(ロシュ限界);ロッシュげんかい(ロッシュ限界), roshu genkai ( roshu genkai ); rosshu genkai ( rosshu genkai )] (n) Roche limit; Roche's limit (closest that a natural satellite can come to the center of a planet without disintegrating due to tidal forces)
[よめとおめかさのうち, yometoomekasanouchi] (exp) expression used to depict a woman who is attractive primarily when it's dark out, she's far away, or her face is partially hidden by a bamboo hat