R2-D2

noun

The Phalanx CIWS, an automated gun-based close-in weapon system to defend military watercraft against incoming threats such as aircraft, missiles, and small boats.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounR2-D2 (plural R2-D2s)

plural R2-D2s

  1. slanggovernmentThe Phalanx CIWS, an automated gun-based close-in weapon system to defend military watercraft against incoming threats such as aircraft, missiles, and small boats.

Origin

From the name of a similar-looking robot character in the film Star Wars.

Full word history & related roots →
Cite this entry
APA

R2-D2. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/R2-D2

MLA

“R2-D2.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/R2-D2. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “R2-D2,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/R2-D2.

Source: R2-D2 on Wiktionary, CC BY-SA 4.0.