doubly labeled water

noun

Water where both the hydrogen and oxygen atoms have been replaced by less common isotopes.

“Deuterium oxide-18 (D₂¹⁸O or ²H₂¹⁸O) is one kind of doubly labeled water.”

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Meanings

noundoubly labeled water (uncountable)
  1. USphysicaluncountablechemistryWater where both the hydrogen and oxygen atoms have been replaced by less common isotopes.

    Deuterium oxide-18 (D₂¹⁸O or ²H₂¹⁸O) is one kind of doubly labeled water.

Cite this entry
APA

doubly labeled water. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/doubly%20labeled%20water

MLA

“doubly labeled water.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/doubly%20labeled%20water. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “doubly labeled water,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/doubly%20labeled%20water.

Source: doubly labeled water on Wiktionary, CC BY-SA 4.0.