sewerage
n. சாக்கடைத் தொகுதி, சாக்கடை அமைப்பு.
Sew"er*age, n. 1. The construction of a sewer or sewers. 2. The system of sewers in a city, town, etc.; the general drainage of a city or town by means of sewers. 3. The material collected in, and discharged by, sewers. [In this sense sewage is preferable and common.]