Final answer:
The term that best describes the process of growing older is aging, a multifaceted process including biological, emotional, intellectual, social, and spiritual changes over the lifespan.
Step-by-step explanation:
The term that best describes the process of growing older is aging. Aging encompasses the various biological, emotional, intellectual, social, and spiritual changes that occur as one progresses through the different stages of life. This process is often studied in the field of gerontology and it is distinct from maturing, which is typically associated with reaching a state of full development, especially in terms of physical or psychological growth.
Sometimes, aging is also accompanied by challenges such as loss of independence, physical deterioration, and age discrimination. This can impact many aspects of one's life, including their identity, roles, and interactions within society. The topic falls under the broader study of lifespan development, which is defined as the study of how we grow and change from conception to death, encompassing physical, cognitive, and psychosocial growth, as well as emotions, personality, and social relationships.