The act of uprooting or removing plants from the ground; removal of plantings.
From 'deplant' + '-ation' (noun suffix indicating action or result). The '-ation' suffix creates a formal noun showing the complete action or state, emerging in botanical/agricultural terminology.
This fancy noun turns 'pulling up plants' into 'deplantation'—it's the kind of word you'd find in a 19th-century gardening manual talking about clearing old gardens.
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