optic glassn.
/ˌɒptɪk ˈɡlɑːs/, /ˌɒptɪk ˈɡlas/, U.S. /ˌɑptɪk ˈɡlæs/ Now historical and archaic.
A lens; an instrument having a lens; spec. a telescope. Also figurative.
ΘΚΠ
the world > physical sensation > sight and vision > optical instruments > [noun] > instrument for looking through
perspectivec1395
spectaclec1430
prospectionc1460
perspective glass1570
optic1599
optic glass1607
optical glassc1660
glass1700
the world > physical sensation > sight and vision > optical instruments > lens > [noun]
glass1545
optic1599
optic glass1607
perspicil1611
lenticular1658
spectacle-glass1682
lens1693
speculum1756
optical1944
lenslet1956
1607 T. Walkington (title) The optick glasse of humors.
1659 R. Boyle Some Motives & Incentives to Love of God 62 A difference resembling that, wherewith Children and Astronomers consider Galileo's Optick Glasses.
1748 Lady Luxborough Let. 11 Sept. in Lett. to W. Shenstone (1775) 54 Mr. Sanders speaking of the dimension of his Optic Glasses..put me in mind of measuring mine. It is near three inches and a half diameter, convex on one side, and flat on the other.
1889 R. Browning Asolando Prol. iii Did you need an optic glass, Which were your choice?
1955 Internat. Affairs 31 210 Turn an optic glass on your own life and the nearest thing is a little out of focus while distance lends clarity to the view.
1960 Science 16 Dec. 1817/1 [In 1660] Sir Paul Neile was one of the Royalist group, famous for his optic glasses.
This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).
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n.1607