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| qua·ter·nar·y [ kwóttər nèrree ] |
adjective |
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| Definition: |
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1. occurring in fours: consisting of four parts, or occurring in sets of four
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2. having four-atom bonds: bonded to four other nonhydrogen atoms or groups of atoms, or containing atoms bonded in this way
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noun (plural qua·ter·nar·ies) |
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| Definition: |
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fourth member: the fourth member of a set
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| [15th century. < Latin quaternarius< quaterni "by fours" < quater "four times"] |
