centringPronunciation: /ˈsɛntrɪŋ/ (US centering /ˈsɛnt(ə)rɪŋ/)Definition of centring noun [mass noun] 1the action or process of placing something in the middle of something else. 2 Architecture framing used to support an arch or dome while it is under construction. centring in other Oxford dictionaries Definition of centring in the US English dictionary