opacimetern.
/ˌəʊpəˈsɪmᵻtə/, /əʊˈpasᵻmiːtə/, U.S. /ˌoʊpəˈsɪmədər/, /oʊˈpæsəmidər/ An instrument for measuring the opacity of a body or substance, esp. by measuring the amount of light it reflects.
ΘΚΠ
the world > matter > light > transparency or translucence > opacity > [noun] > degree of > measurement of > instrument
opacimeter1919
1919 Chem. Abstr. 13 2892 (heading) Opacimeter designed for the estimation of the quantity of bacteria.
1944 Paper Trade Jrnl. 26 Oct. 27/2 The white body consists of a white standard protected by a cover glass, as is the case in the Bausch and Lomb opacimeter.
1967 TAPPI Feb. 59A/1 The B & L Opacimeter reads either printing opacity (as defined by Davis) or contrast ratio (as defined by TAPPI official methods).
1999 Rock Products (Electronic text) 1 Sept. CCRG implemented..a continuous monitoring system including an opacimeter.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1919- on the bones of one's arse
- on the books
- on the booze
- on the border
- on the borders of
- on the bottle
- on the bounce
- on the bow
- on the box
- on the box seat
- on the brain
- on the breadline
- oneway
- oneway pockets
- oneweek stand
- onewheel
- onewhere
- onewhile
- onewindowed
- onewinged
- onewive
- onewoman
- oneword
- oneworded
- oneworld