prism

noun

ˈpri-zəm 

1

: a polyhedron with two polygonal faces lying in parallel planes and with the other faces parallelograms

2

a

: a transparent body that is bounded in part by two nonparallel plane faces and is used to refract or disperse a beam of light

b

: a prism-shaped decorative glass luster

3

: a crystal form whose faces are parallel to one axis

especially : one whose faces are parallel to the vertical axis

4

: a medium that distorts, slants, or colors whatever is viewed through it

Examples of prism in a Sentence

Recent Examples on the Web

There is no cure for the disease, but treatment options to help with symptoms include physical and occupational therapy, Botox, antidepressants, eyeglasses with prism or bifocal lenses, and Parkinson’s disease medications. —Minyvonne Burke, NBC news, 13 Nov. 2025

The impact of Diogo Jota’s death This may appear at the end of our assessment of Liverpool’s issues, but in truth any appraisal of the club’s season should be seen through the prism of Diogo Jota’s tragic death in the summer. —The Athletic's Liverpool Staff, New York Times, 11 Nov. 2025

Insider information on allegations sports betting Through this prism, consider the allegations in the indictment against former NBA player Damon Jones. —Samidh Guha, ABC News, 9 Nov. 2025

In fact, Newsom has already spoken about 2028 — through the prism of 2026. —Dominic Patten, Deadline, 4 Nov. 2025

Word History

Etymology

Late Latin prismat-, prisma, from Greek, literally, anything sawn, from priein to saw

First Known Use

1570, in the meaning defined at sense 1

Rhymes for prism

• abolitionism
• aldosteronism
• americanism
• anticommunism
• antisemitism
• antiterrorism
• bioterrorism
• colloquialism
• colonialism
• consequentialism
• contextualism
• conventionalism

Kids Definition

prism

noun

ˈpriz-əm 

1

: a polyhedron with two opposite ends that are parallel polygons and faces that are each parallelograms

2

: a transparent object that usually has three sides and bends light so that it breaks up into rainbow colors

Medical Definition

prism

noun

ˈpriz-əm 

1

: a polyhedron with two polygonal faces lying in parallel planes and with the other faces parallelograms

2

: a transparent body that is bounded in part by two nonparallel plane faces and is used to refract or disperse a beam of light

3

: a crystal form whose faces are parallel to one axis

especially : one whose faces are parallel to the vertical axis