Definition of turnbuckle. : a device that usually consists of a link with screw threads at both ends, that is turned to bring the ends closer together, and that is used for tightening a rod or stay.
Such splintering had not yet led to formal party organization, but later the faction led by Andrew Jackson would evolve into the Democratic Party, while the factions led by John Quincy Adams and Henry Clay would become the National Republican Party and later the Whig Party.
In the 1824 election, without an absolute majority in the Electoral College, the 12th Amendment dictated that the Presidential election be sent to the House of Representatives, whose Speaker and candidate in his own right, Henry Clay, gave his support to John Quincy Adams, and was then selected to be his Secretary of State.