Origin: Latin suffix -al
Physiological has 3 different meanings across 1 category:
of or relating to the biological study of physiology
"physiological psychology"
"Pavlov's physiological theories"
of or consistent with an organism's normal functioning
"physiologic functions"
"physiological processes"
Of, or relating to physiology.
"The physiological effects of sleep deprivation can be severe and long-lasting."
In plain English: Physiological means having to do with how your body's systems and organs work naturally.
"The physiological effects of long-term stress can lead to high blood pressure and heart disease."
The word physiological comes either from combining the prefix physio- with -logical, or directly from the Latin term physiologicus plus the suffix -al. It entered English as an adjective describing phenomena related to physiology, mirroring its original meaning in both constructions.