psychology
noun
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The Roots of Psychology
The word psychology was formed by combining the Greek psychē (meaning “breath, principle of life, life, soul,”) with –logia (which comes from the Greek logos, meaning “speech, word, reason”). An early use appears in Nicholas Culpeper’s mid-17th century translation of Simeon Partliz’s A New Method of Physick, in which it is stated that “Psychologie is the knowledg of the Soul.” Today, psychology is concerned with the science or study of the mind and behavior. Many branches of psychology are differentiated by the specific field to which they belong, such as animal psychology, child psychology, and sports psychology.
Examples of psychology in a Sentence
John Kormanik, Forbes, 25 Feb. 2025
No pills, no treatments, no psychology or psychiatry.
—Lee Cowan, CBS News, 23 Feb. 2025
Still, politicians and monetary policymakers need to be careful with inflation psychology.
—Jonathan Levin, The Mercury News, 20 Feb. 2025
What follows is the unearthing of an extraordinary and disturbing secret that goes far beyond her own life, leading to the discovery of a psychology experiment on a pair of twins – once hailed as a revolutionary success but now revealed to be a terrible lie affecting thousands around the world.
—Matthew Carey, Deadline, 20 Feb. 2025
See All Example Sentences for psychology
Cite this Entry
“Psychology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychology. Accessed 4 Mar. 2025.
Copy CitationKids Definition
psychology
noun
from scientific Latin psychologia "the study of the mind and behavior," derived from Greek psychē "soul, mind" and Greek -logia "science, study"
Medical Definition
psychology
noun
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