Adren/o or adrenal/o is a combining form for “adrenal gland” or “adrenaline (epinephrine)”.
Example Word: adren/ergic
Word Breakdown: Adren is a word root that refers to “adrenal gland” or “epinephrine”, -ergic is a suffix that pertains ” produced or activated by”.
Definition: Adrenergic means being activated by the adrenal process.
