雨う水すい桝ますMeanings1nounstormwater inlet; street inletTechnical term for a grated opening at the edge of a road or in a gutter that collects rainwater and directs it into a drainage system.道どう路ろの雨う水すい桝ますに落おち葉ばが詰つまっていた。Fallen leaves were clogging the stormwater inlet on the road.
