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principal diagonal
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This shows grade level based on the word's complexity.
noun
Mathematics. See under diagonal (def. 9).
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Origin of principal diagonal
First recorded in 1960–65
Words nearby principal diagonal
principal, principal argument, principal axis, principal boy, principal clause, principal diagonal, principal focus, principal ideal, principal ideal domain, principalities, principality
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023