Meanings
- slanguncountablegovernmentThe woodland camouflage pattern used by the United States Armed Forces from 1981 until 2012.
Origin
From M (used for model) + 81 (short for 1981, the year of its introduction), following the pattern of the Model designation for U.S. military equipment.
Full word history & related roots →Cite this entry
M81. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/M81
“M81.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/M81. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “M81,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/M81.
Source: M81 on Wiktionary, CC BY-SA 4.0.