spring gun

spring gun (plural spring guns)

1. A gun rigged to fire when a tripwire is crossed.

• “spring gun, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “spring gun”, in OneLook Dictionary Search.
• “spring gun”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “spring gun” in TheFreeDictionary.com, Huntingdon Valley, Pa.: Farlex, Inc., 2003–2024.