Physiologist (noun)

1. A person who specializes in the study of the functions and processes of living organisms and their parts.
2. A scientist who studies the physical and chemical processes involved in the functioning of living organisms.

Origin:

From french physiologie, meaning 'the study of nature' + -ist, meaning 'one who studies or practices'.

Examples:

1. The physiologist studied the respiration and circulation systems of the human body.
2. The physiologist's research was focused on understanding the nervous system of invertebrates.
3. The physiologist worked in the laboratory, conducting experiments on various animal species.
4. The physiologist collaborated with other scientists to develop new treatments for diseases.
5. The physiologist presented his findings at international conferences, where they were well received.