Noun

The study of the physical universe, its structure, dynamics, origin and evolution, and fate.

*{{quote-magazine, date=2012-01

, author=Robert L. Dorit , title=Rereading Darwin , volume=100, issue=1, page=23 , magazine= citation , passage=We live our lives in three dimensions for our threescore and ten allotted years. Yet every branch of contemporary science, from statistics to cosmology , alludes to processes that operate on scales outside of human experience: the millisecond and the nanometer, the eon and the light-year.}}

A metaphysical study into the origin and nature of the universe.

A particular view (cultural or religious) of the structure and origin of the universe.

Noun

(uncountable) The study of the human mind.

(uncountable) The study of human behavior.

(uncountable) The study of animal behavior.

(countable) The mental, emotional, and behavioral characteristics pertaining to a specified person, group, or activity.

* 1970 , Mary M. Luke, A Crown for Elizabeth , page 8:

For generations, historians have conjectured everything from a warped psychology to a deformed body as accounting for Elizabeth's preferred spinsterhood...

* 1969 , Victor Alba, The Latin Americans , page 42:

In the United States, the psychology of a laborer, a farmer, a businessman does not differ in any important respect.