Quick definitions from Wiktionary (walled plain)
▸ noun: (astronomy) A large impact crater that has a relatively flat floor, surrounded by a wall
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▸ noun: (astronomy) A large impact crater that has a relatively flat floor, surrounded by a wall
▸ Words similar to walled plain
▸ Usage examples for walled plain
▸ Words that often appear near walled plain
▸ Rhymes of walled plain
▸ Invented words related to walled plain