/ ˌfɪziˈɒlədʒi; NAmE -ˈɑːlə-/ noun
1.
[ U ] the scientific study of the normal functions of living things :
the department of anatomy and physiology
2.
[ U , sing. ] the way in which a particular living thing functions :
plant physiology
the physiology of the horse
► physio·logic·al / ˌfɪziəˈlɒdʒɪkl; NAmE -ˈlɑːdʒ-/ adjective :
the physiological effect of space travel
► physio·lo·gic·al·ly / -ɪkli; NAmE / adverb
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WORD ORIGIN
early 17th cent.: from Latin physiologia (perhaps via French ), from Greek phusiologia natural philosophy (see physio- , -logy ).