centring

verb

1. (form-of, gerund, participle, present)present participle and gerund of centre

   “The centre castings moved with liberal side-play on horizontal slides, under the centring influence of coiled compression springs acting through horizontal rocking shafts.”

noun

1. (alt-of, alternative)Alternative form of centering.

   “The timbering and centring used for the construction of the main arch were exceptionally massive, and were acclaimed as masterpieces of joinery in contemporary reports on the progress of the work.”