From French physiologie, from Latin physiologia, from Ancient Greek φυσιολογία (phusiología, “natural philosophy”), from φύσις (phúsis, “nature”) + λόγος (lógos, “word”). Equivalent to physi- + -ology.
- A branch of biology that deals with the functions and activities of life or of living matter (as organs, tissues, or cells) and of the physical and chemical phenomena involved.
- (obsolete) The study and description of natural objects; natural science.
branch of biology