behavior
noun
be·hav·ior
bi-ˈhā-vyər
bē-
1
: the way in which someone conducts oneself or behaves (see behave sense 1)
We were grateful for the gracious behavior of our hostess.
The children were rewarded for good behavior.
Be on your best behavior.
also
: an instance of such behavior
unacceptable social behaviors
2
a
: the manner of conducting (see conduct entry 1 sense 2) oneself
criminal behavior
normal adolescent behavior
b
: anything that an organism does involving action and response to stimulation
c
: the response of an individual, group, or species to its environment
They are studying the behavior of elephants in the wild.
3
: the way in which something functions or operates
They tested the behavior of various metals under heat and pressure.
Cite this Entry
“Behavior.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/behavior. Accessed 7 Sep. 2026.
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