a combining form representing physical or physiological in compound words: physiotherapy.
Origin of physio-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
before a vowel phys-
of or relating to nature or natural functionsphysiology
Word Origin for physio-
from Greek phusio, from phusis nature, from phuein to make grow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
word-forming element meaning "nature, natural, physical," from Greek physio-, comb. form of physios "nature" (see physic).
Online Etymology Dictionary, © 2010 Douglas Harper
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.