trọng tâm

== Vietnamese == === Etymology === Sino-Vietnamese word from 重心. === Pronunciation === (Hà Nội) IPA(key): [t͡ɕawŋ͡m˧˨ʔ təm˧˧] (Huế) IPA(key): [ʈawŋ͡m˨˩ʔ təm˧˧] ~ [ʈɔŋ˨˩ʔ təm˧˧] (Saigon) IPA(key): [ʈawŋ͡m˨˩˨ təm˧˧] === Noun === trọng tâm a main point (geometry) a centroid (physics) a center of mass; a center of gravity === See also === trực tâm