1.
Physiology is the scientific study of how people’s and animals’ bodies function, and of how plants function.
...the Nobel Prize for Medicine and Physiology.
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physiologist (physiologists)
... a retired plant physiologist.
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2.
The ~ of a human or animal’s body or of a plant is the way that it functions.
...the ~ of respiration.
...insect ~.
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physiological
...the physiological effects of stress.
ADJ