horticulturalist (horticulturalists plural) A horticulturalist is a person who grows flowers, fruit, and vegetables, especially as their job. n-count. horticulturalist (horticulturalists plural) A horticulturalist is a person who grows flowers, fruit, and vegetables, especially as their job.
Category:Subject:Physiology. Books in this subject area deal with physiology: the study of the mechanical, physical, and biochemical functions of living organisms. Physiology has traditionally been divided between plant physiology and animal and all living things physiology but the principles of physiology are universal, no matter what particular organism is being studied.
Definition of physiology for Students. 1  1 : a branch of biology that deals with the processes and activities that keep living things alive. 2  2 : the processes and activities by which a living thing or any part of it functions.