periphery /pə-rifˈə-ri/

1. A line or surface acting as a boundary
2. The outside of anything
3. A surrounding region

periphˈeral adjective

1. Of or relating to a periphery
2. Not of primary importance, incidental, minor
3. Auxiliary (computing)

A peripheral unit

peripheralˈity noun

peripheric /per-i-ferˈik/ or peripherˈical adjective (archaic)

peripheral unit or peripheral device noun

(in a computer system) any of the input (eg card reader), output (eg magnetic tape), and storage devices, which are connected to or controlled by the central processing unit

periphery camera same as all-round camera (see under all).

• monoxylons
• monoxylous
• monozygotic
• monozygotic twins
• Monroe doctrine
• Monroeism
• Monroeist
• Mons
• Monseigneur
• Monsieur
• Monsieur de Paris
• Monsig
• Monsignor
• Monsignore
• Monsignori
• Monsignors
• monsoon
• monsoonal
• monsoons
• mons pubis
• monster
• monstera
• monsteras
• monsters
• monstrance