pla·na·tion 
(plā-nāshən)
(plā-nāshən)n.
The process of erosion and deposition in which a nearly level surface is produced, as by streams, wind, or ocean currents.
[Latin plānum, flat surface; see PLANE1 + -ATION.]
| 单词 | planation |
| 释义 | pla·na·tion (plā-nāshən)n. The process of erosion and deposition in which a nearly level surface is produced, as by streams, wind, or ocean currents. [Latin plānum, flat surface; see PLANE1 + -ATION.] |
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