polyzonaladj.
/ˌpɒlɪˈzəʊnl/, U.S. /ˌpɑliˈzoʊn(ə)l/ Science.
Divided into or comprising several zones; occupying or involving several zones.Recorded earliest in polyzonal lens n. at Compounds.
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the world > physical sensation > sight and vision > optical instruments > lens > [adjective] > types of lenses
convex?a1560
planoconvex1665
concavo-convex1677
convexo-concave1693
strong1732
aplanatic1799
periscopic1803
omphaloptic1819
polyzonal1823
shallow1837
first-order1846
periscopical1846
orthoscopic1853
rectilinear1874
overcorrected1875
sphero-cylindrical1881
wide-aperture1882
afocal1887
apochromatic1887
anastigmatic1890
telecentric1892
photovisual1899
aspherical1922
aspheric1923
multifocal1928
plano1944
demagnifying1959
1823 D. Brewster in Edinb. Philos. Jrnl. 8 160 (title) On the construction of polyzonal lenses.
1958 H. L. Ritz in Heaton Works Jrnl. 8 255/1 The industrial nuclear power stations which are now being built in Britain are based on a type of fuel container which we call the ‘Polyzonal Spiral Fuel Element’.
1989 Quaternary Internat. 2 35 The present-day landscape sphere is characterized by belts of temperate and tropical forests in a polyzonal system.
2002 Biochem. Systematics & Ecol. 30 525 Analysis of the geographical distribution of ecdysteroid-containing species..reveals that many of them belong to the southern or polyzonal latitudinal groups.
Compounds
polyzonal lens n. now historical = Fresnel lens at Fresnel n. 1.
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1823*Polyzonal lens [see main sense].
c1865 J. Wylde Circle of Sci. I. 258/2 A polyzonal lens, such as was employed..at the South Foreland lighthouse.
2004 Oxf. Dict. National Biogr. (Electronic text) at Brewster, Sir David The invention which he claimed and defended for most of his life was a type of zonal lens built up from annular rings and described as his polyzonal lens, which is now called a Fresnel lens.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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adj.1823