Turnbuckle vs. Coupler

Turnbucklenoun

A coupling device consisting of two eyelets or other connection points connected in screw threads. The joint in between can be turned to shorten or lengthen the device with mechanical advantage provided by the screw threads.

Couplernoun

Someone who couples things together, especially someone whose job it is to couple railway carriages.

Turnbucklenoun

(nautical) A link threaded on both ends of a short bar which is used to pull objects together. (FM 55-501)

Couplernoun

Anything that serves to couple things together; but especially a device that couples railway carriages.

Turnbuckle

A turnbuckle, stretching screw or bottlescrew is a device for adjusting the tension or length of ropes, cables, tie rods, and other tensioning systems. It normally consists of two threaded eye bolts, one screwed into each end of a small metal frame, one with a left-hand thread and the other with a right-hand thread.

Couplernoun

(music) A device that connects two keyboards of an organ together so that they play together.

Couplernoun

A device used to convert electronic information into audible sound signals for transmission over telephone lines.

Couplernoun

An electrical device used to transfer energy from one electric device to another, especially without a physical connection.

Couplernoun

One who couples; that which couples, as a link, ring, or shackle, to connect cars.

Couplernoun

a mechanical device that serves to connect the ends of adjacent objects