n.
Pronunciation: al- ' däs-t ə - ˌ r ō n; ˌ al-d ō - ' ster- ˌ ō n, - ' stir-; ' al-d ō -st ə - ˌ r ō n
Function: noun
Etymology: ald ehyde + -o- + -sterone
Date: 1954
: a steroid hormone C 21 H 28 O 5 of the adrenal cortex that functions in the regulation of the salt and water balance of the body