n. in anatomy, this refers to a body cavity or chamber, for example, the two upper chambers of the heart.
ATRIUM: "A person with a large atrium had a larger than average heart chamber."
Cite this page: N., Pam M.S., "ATRIUM," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/atrium/ (accessed January 22, 2020).
