What is a structure or frame containing parallel or crosed bars, with interstices; a kind of latticework, such as is used ia the windows of prisons and cloisters. "A secret grate of iron bars." Shak called?

grate — A structure or frame containing parallel or crosed bars, with interstices; a kind of latticework, such as is used ia the windows of prisons and cloisters. "A secret grate of iron bars." Shak. (Webster's 1913.)

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