excavation
n. தோண்டுதல், குழி, பள்ளம், நில அகழ்வு.
Ex`ca*va"tion, n. Etym: [L. excavatio: cf. F. excavation.] 1. The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass. 2. A cavity formed by cutting, digging, or scooping. "A winding excavation." Glover. 3. (Engin.) (a) An uncovered cutting in the earth, in distinction from a covered cutting or tunnel. (b) The material dug out in making a channel or cavity. The delivery of the excavations at a distance of 250 feet. E. L. Corthell.