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A.Word.A.Daywith Anu Garg
1. Of the fourth order.
2. Consisting of or arranged in fours.
1. A group of four.
2. The number four.
From Latin quattuor (four). Earliest documented use: 1450.
"The patient referral system started at the primary, to secondary, to tertiary, and finally to the quaternary level of health care."
Jane Kanchense; Zimbabwe's Child Brides; Trafford; 2011.
See more usage examples of quaternary in Vocabulary.com's dictionary.
A THOUGHT FOR TODAY:They defend their errors as if they were defending their inheritance. -Edmund Burke, statesman and writer (1729-1797)