noun, plural phy·ses [fahy-seez] /ˈfaɪ siz/.
the principle of growth or change in nature.
nature as the source of growth or change.
something that grows, becomes, or develops.
Origin of physis
< Greek phýsis origin, natural form of a thing; akin to phŷlon race (see phylon)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019