noun
slotted grating; perforated plate; slotted drain cover
Technical term for a plate or grating with slots or holes, used in drains, filters, or similar applications.
排水溝に目皿がはまっている。
A slotted grating is fitted in the drain.
目皿の穴から水が流れ落ちる。
Water flows down through the holes in the perforated plate.