Definition of pregnanediol in US English:

pregnanediol

(also pregnandiol)

noun

Biochemistry Medicine
  • A steroid alcohol which is a product of the metabolism of progesterone and is used as a measure of progesterone production, especially during pregnancy; 5β-pregnane-3,20-diol, C₂₁H₃₆O₂.

Origin

1930s; earliest use found in Chemical Abstracts. From German Pregnandiol from classical Latin praegnans + German di- + -ol.

Pronunciation

pregnanediol

/ˌprɛɡneɪnˈdʌɪɒl/