plano-concave
Americanadjective
adjective
Etymology
Origin of plano-concave
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
What Hall and Dollond did was to make the outer or crown lens of the objective as before, and place behind it a plano-concave lens of dense flint glass.
From Astronomy: The Science of the Heavenly Bodies by David Peck Todd
Galileo’s telescope consisted of two lenses—one plano-convex, the other plano-concave, the latter being held next the eye.
From The Astronomy of Milton's 'Paradise Lost' by Thomas Nathaniel Orchard
E is a double concave, being, in all respects, the reverse of D. C is a plano-concave, flat on one side, and concave on the other.
From Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained by Thomas P. Jones
The names of the various shapes are as follows:—No. 1, plano-convex; No. 2, plano-concave; No. 3, double convex; No. 4, double concave; No. 5, meniscus; No. 6, concavo-convex.
From How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use by Archibald Williams
There, two lenses were made, one plano-convex, and the other plano-concave, and these were placed in a tube made of sheet copper.
From Little Journeys to the Homes of the Great - Volume 12 Little Journeys to the Homes of Great Scientists by Elbert Hubbard
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
