pressurant

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noun

A gas used to drive a fluid through a fluid system.

“The helium pressurant supplies the energy for the propellant transport from the tanks to the combustion chamber.”

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Meanings

nounpressurant (plural pressurants)

plural pressurants

  1. A gas used to drive a fluid through a fluid system.

    The helium pressurant supplies the energy for the propellant transport from the tanks to the combustion chamber.

    1 more example

    During tank pressurization under some circumstances, rapid mixing of relatively warm pressurant gas with cryogenic propellant can lead to rapid densification of the gas and loss of pressure in the tank.

Cite this entry
APA

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

MLA

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

Chicago

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

Source: pressurant on Wiktionary, CC BY-SA 4.0.