tetraplet

== English == === Etymology === Blend of tetra- (“four”) + couplet (“set of two”). === Pronunciation === IPA(key): /ˈtɛtɹələt/, /ˈtɛtɹəlɪt/ === Noun === tetraplet (plural tetraplets) Synonym of quartet: A group of four things. Coordinate terms: singlet, couplet, triplet, quadruplet, quintuplet, pentuplet, sextuplet, septuplet, octuplet, nonuplet, decuplet, centuplet, multiplet Any member of such a group.