Meanings
adjectiverarefiable (not comparable)
- not comparableCapable of being rarefied.
[…] Hovv the Air comes to be rarefiable ſo many times more vvithout Heat, than hitherto vve have found it to be by Heat.
1671, Robert Boyle, “A Discovery of the Admirable Rarefaction of Air”, in Tracts […]. Of a Discovery of the Admirable Rarefaction of the Air. […], London: […] T. N. for Henry Herringman, […], →OCLC, experiment III, page 10
Origin
From rarefy + -able. Compare French raréfiable.
Full word history & related roots →Cite this entry
APA
rarefiable. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/rarefiable
MLA
“rarefiable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rarefiable. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “rarefiable,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/rarefiable.
Source: rarefiable on Wiktionary, CC BY-SA 4.0.