Meanings
nounpregnenolone (usually uncountable, plural pregnenolones)
plural pregnenolones
- uncountableusuallysteroidsbiochemistryA steroid prohormone involved in the steroidogenesis of progesterone, mineralocorticoids, glucocorticoids, androgens, and estrogens.
Origin
From pregnane + -ene + -ol + -one.
Full word history & related roots →Cite this entry
APA
pregnenolone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pregnenolone
MLA
“pregnenolone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pregnenolone. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “pregnenolone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pregnenolone.
Source: pregnenolone on Wiktionary, CC BY-SA 4.0.