心房

Etymology 1
In its earliest known usage, found in the Treatise on Physiology 《全體新論》 by, it referred to any of the four chambers of the heart. This word was then transmitted from Chinese to Japanese as, where the meaning narrowed to refer only to the atrium. This narrowed meaning was then brought back into Chinese by the 20th century.

Noun

 * 1)  atrium of the heart

Noun

 * 1)  one's heart (as the seat of emotions)

Noun

 * 1)  an atrium