Glossary of Terms:

1/8-inch plug

A 1/8-inch male connector commonly used with consumer electronics; A mono 1/8-inch plug uses two conductors (tip/sleeve), and a stereo 1/8-inch plug uses three conductors (tip/ring/sleeve).

Source: Yamaha

Also refered as:   miniplug

Related terms:   1/8-inch jack   TRS   TS   minijack   miniplug