Main Entry: ¹chain

Pronunciation: \ˈchān\

Function: noun

Usage: often attributive

Etymology: Middle English cheyne, from Anglo-French chaene, from Latin catena

Date: 14th century

1 a : a series of usually metal links or rings connected to or fitted into one another and used for various purposes (as support, restraint, transmission of mechanical power, or measurement) b : a series of links used or worn as an ornament or insignia c (1) : a measuring instrument of 100 links used in surveying (2) : a unit of length equal to 66 feet (about 20 meters)
2 : something that confines, restrains, or secures
3 a : a series of things linked, connected, or associated together <a chain of events> <a mountain chain> b : a group of enterprises or institutions of the same kind or function usually under a single ownership, management, or control <fast-food chains> c : a number of atoms or chemical groups united like links in a chain