பொருள் : అభద్రతలేని తనం
							எடுத்துக்காட்டு : 
							వృక్షాల యొక్క కొరత వల్ల భూమి తన యొక్క రక్షణను కోల్పోతుంది.
							
ஒத்த சொற்கள் : రక్షణ
பிற மொழிகளில் மொழிபெயர்ப்பு :
(geology) the mechanical process of wearing or grinding something down (as by particles washing over it).
eating away, eroding, erosion, wearing, wearing away