Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

-sterone

A steroid hormone.

[A blend of steroid with ketone.]

Such compounds are steroids that are also ketones, containing a carboxyl group (==C==O). Examples include the naturally occurring sex hormones progesterone (Latin pro plus the first part of gestation), testosterone (Latin testis, a witness (to fertility)), and androsterone (Greek anēr, andr-, man). Other examples are aldosterone (English aldehyde), a corticosteroid hormone which stimulates absorption of sodium by the kidneys and so regulates water and salt balance, and corticosterone, a hormone secreted by the adrenal cortex.

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