pico-watt

noun

One million millionth (10⁻¹²) of a watt, abbreviated as pW.

OriginEnglish watt ← Spanish pico ← Old Spanish bico →
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Meanings

nounpico-watt (plural pico-watts)

plural pico-watts · alternative picowatt

  1. One million millionth (10⁻¹²) of a watt, abbreviated as pW.

Origin

  1. Latinbeccus
  2. Old Spanishbico
  3. Spanishpico
  4. Englishpico-
  5. Englishwatt
  6. Englishpico-watt

From pico- + watt.

Full word history & related roots →
Cite this entry
APA

pico-watt. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pico-watt

MLA

“pico-watt.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pico-watt. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pico-watt,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pico-watt.

Source: pico-watt on Wiktionary, CC BY-SA 4.0.