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11-de·hy·dro·cor·ti·co·ste·rone i-'lev-ən-(.)dē-.hī-drō-.kȯrt-ə-'käs-tə-.rōn, -i-(.)kō-stə-'; -.kȯrt-i-kō-'sti(ə)r-.ōn n a steroid C21H28O4 extracted from the adrenal cortex and also made synthetically compare CORTISONE
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11-de·hy·dro·cor·ti·cos·ter·one (de-hi″dro-kor″tĭ-kosґtər-ōn) an adrenocortical steroid made from, and convertible to, corticosterone; it is not directly active. Also produced synthetically, it is used like cortisone as a glucocorticoid and as an antiallergic agent.Medical dictionary. 2011.