centre-weightedcenter-weightedadj.
/ˈsɛntəˌweɪtᵻd/, U.S. /ˈsɛn(t)ərˌweɪdəd/ 1. Having the weight concentrated at the centre; having a balancing or regulating weight placed at the centre.
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1866 Eng. Mechanic 13 Apr. 44/3 The short ends of treadle levers may be prolonged back past the joint, and be centre-weighted there.
1885 W. S. Hutton Works' Manager's Hand-bk. i. 19 Divide the product by the sum of the weights of the revolving balls, the quotient will be the height of a centre-weighted governor.
1942 Lubbock (Texas) Avalanche-Jrnl. 16 Aug. 4/5 (advt.) Woods [i.e. golf clubs] are center-weighted persimmon.
2003 J. M. Pallis & R. D. Mehta in M. Jenkins Materials in Sports Equipm. I. v. 121 Beginners may use ‘centre-weighted’ discuses (less weight at the outer rim).
2. Photography. Designating a mode of automatic light metering in a camera that takes greater account of brightness readings from the central region of an image than of those from peripheral regions; (of a light meter) operating in this way.
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1967 Mod. Photogr. July 84/1 (heading) Nikon Photomic TN: Center-Weighted Meter.
1974 L. Jacobs How to take Great Pictures with your SLR v. 80/1 This type of smart meter is called center-weighted because it assigns more ‘weight’ to center brightnesses when figuring exposure settings.
1993 National Geographic Traveler Sept. 16/2 Advanced cameras may provide a choice of modes such as matrix, center-weighted, and spot, which you can switch among at will.
2006 Which Digital Camera? Mar. 90/2 Centre-weighted metering measures light in the central area of the viewfinder image; spot or selective takes a reading from a small area, usually defined by a circle in the viewfinder.
This is a new entry (OED Third Edition, September 2016; most recently modified version published online December 2021).
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adj.1866