- prism bar,
- prism binocular,
- prism diopter,
- prism spectrometer,
Origin of prism
Examples from the Web for prism
You had the PRISM program, and you also have National Security letters.
Snowden himself exposed a program known as PRISM that provided these so-called back doors to the NSA in the United States.
Mistakes happen, nuance is often lost, and everything is seen through a prism of who is winning and who is losing.
And what has become known as the PRISM program is not aimed at collecting the communications of Americans.Bush Era Republicans Letter Denouncing RNC's NSA Criticism||January 26, 2014|DAILY BEAST
And earlier, Facebook, Google, and Twitter all criticized the NSA over its PRISM program.The Unseen Threat to the Fourth Amendment Is the Fourth Amendment Itself|Kevin Bleyer|January 4, 2014|DAILY BEAST
The two halves of the prism are kept in position, without touching each other, by means of the mounting.
Analysis by the prism alone has quite doubled the knowledge that was previously available.The Hills and the Vale|Richard Jefferies
The faces of this prism are inclined to 30 to those of the last prism.
If v be the linear shifting due to the prism of the originally central band, v must be regarded as a function of λ.
The light seems a colourless thing until it passes through a prism and suddenly reveals every colour in the world.The Wanderings of a Spiritualist|Arthur Conan Doyle
Word Origin for prism
1560s, a type of solid figure, from Late Latin prisma, from Greek prisma (Euclid), literally "something sawed," from prizein "to saw" (see prion). Meaning in optics is first attested 1610s.
A solid figure in geometry with bases or ends of the same size and shape and sides that have parallel edges. Also, an object that has this shape.