Word.ws English Dictionary

PFAS

/ˈpiːfæs/

PFAS noun: a perfluoroalkyl substance. Also the acronym of perfluoroalkyl or polyfluoroalkyl substance.

Noun (1)

PFAS (countable and uncountable, plural PFAS or PFASs)

  1. (by restriction) a perfluoroalkyl substance
  2. (by restriction) a polyfluoroalkyl substance

Noun (2) capitalized: PFAs

PFAs

  1. (plural) plural of PFA

Noun (3) capitalized: Pfas

Pfas (countable and uncountable, plural Pfas)

  1. Alternative letter-case form of PFAS.
    • Amid rising global concern over the harmful impact of Pfas chemicals on human health and the environment, in 2024 the local council and the Environment Agency (EA) initiated an investigation into historical emissions from the site.2026 July 10, Pippa Neill, “‘I just want to know if it has caused my cancer’: life in the shadow of Lancashire Pfas factory”, in The Guardian, →ISSN

Also used as

PFAS is also the acronym of perfluoroalkyl or polyfluoroalkyl substance.

PFAS is also the initialism of pollen-food allergy syndrome.

Synonyms of PFAS

Forms of PFAS

pluralPFAS
pluralPFASs
pluralPfas

Questions about PFAS

What does PFAS mean?
PFAS means a perfluoroalkyl substance.
What part of speech is PFAS?
PFAS is a noun.
How do you pronounce PFAS?
PFAS is pronounced /ˈpiːfæs/.
What is the plural of PFAS?
The plural of PFAS is PFAS.

Words near PFAS in the dictionary

  1. Pfannenstiels
  2. PFAR
  3. Pfarr
  4. Pfarrs
  5. PFARs
  6. PFAS
  7. PFASs
  8. pfaugh
  9. pfb
  10. PFBS
  11. PFC

Source and license

Adapted from Wiktionary: PFAS (page history and authors); PFAs (page history and authors); Pfas (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “PFAS.” Word.ws, https://word.ws/pfas. Based on Wiktionary, CC BY-SA 4.0.