Definition of pregnane in English:

pregnane

noun ˈprɛɡneɪn

Chemistry

A tetracyclic saturated hydrocarbon, C₂₁H₃₆, which has two stereoisomeric forms and whose molecule is the framework of those of a group of steroids, including progesterone and pregnanediol; specifically the 5β-isomer.

Origin

1930s; earliest use found in Annual Reports Progress Chemistry. From German Pregnan from Pregnan- (in Pregnandiol), with ending probably reanalysed as -an.

Definition of pregnane in US English:

pregnane

nounˈprɛɡneɪn

Chemistry

A tetracyclic saturated hydrocarbon, C₂₁H₃₆, which has two stereoisomeric forms and whose molecule is the framework of those of a group of steroids, including progesterone and pregnanediol; specifically the 5β-isomer.

Origin

1930s; earliest use found in Annual Reports Progress Chemistry. From German Pregnan from Pregnan- (in Pregnandiol), with ending probably reanalysed as -an.

单词	pregnane
释义	Definition of pregnane in English: pregnane noun ˈprɛɡneɪn Chemistry A tetracyclic saturated hydrocarbon, C₂₁H₃₆, which has two stereoisomeric forms and whose molecule is the framework of those of a group of steroids, including progesterone and pregnanediol; specifically the 5β-isomer. Origin 1930s; earliest use found in Annual Reports Progress Chemistry. From German Pregnan from Pregnan- (in Pregnandiol), with ending probably reanalysed as -an. Definition of pregnane in US English: pregnane nounˈprɛɡneɪn Chemistry A tetracyclic saturated hydrocarbon, C₂₁H₃₆, which has two stereoisomeric forms and whose molecule is the framework of those of a group of steroids, including progesterone and pregnanediol; specifically the 5β-isomer. Origin 1930s; earliest use found in Annual Reports Progress Chemistry. From German Pregnan from Pregnan- (in Pregnandiol), with ending probably reanalysed as -an.
随便看	flaked flaked out flake (off) flake out flake out flaker flakes flake white flakey flakier flakiest flakily flakily flakiness flakiness flakinesses flaking flak jacket flak jackets flak vest flaky flaky pastry flam flamage flamation