PLSS

P3L1S1S1

A form of primary life support system — A backpack, worn on a space suit, that provides breathable oxygen and removes expelled carbon dioxide.

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Meanings

nounPLSS (plural PLSSes)

plural PLSSes

  1. abbreviationinitialismInitialism of primary life support system.
  2. abbreviationinitialismInitialism of portable life support system.
  3. abbreviationinitialismInitialism of personal life support system.
Cite this entry
APA

PLSS. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/PLSS

MLA

“PLSS.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/PLSS. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “PLSS,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/PLSS.

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