chord
A harmonic set of three or more notes that is heard as if sounding simultaneously.
Other meanings
A line segment between two points of a curve.
A horizontal member of a truss.
Word history
From Ancient Greek "χορδή" (string of gut, the string of a lyre).
Where this comes from
This definition is adapted from “chord” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.