Word.ws English Dictionary

Plural of prism

regular plural

The plural of prism is prisms.

Forms of prism

Singularprism /ˈpɹɪz(ə)m/
Pluralprisms
Countablecountable

Prisms in a sentence

  • But there are solids constructed from two or more regular prisms that also pack space.2015, Claudi Alsina, Roger B. Nelsen, A Mathematical Space Odyssey: Solid Geometry in the 21st Century, →ISBN. From the entry gyrobifastigium
  • An interesting example (with an equally interesting name) is the gyrobifastigium, constructed from two regular triangular prisms.2015, Claudi Alsina, Roger B. Nelsen, A Mathematical Space Odyssey: Solid Geometry in the 21st Century, →ISBN. From the entry gyrobifastigium
  • Irregular prisms have a cross-section with no well known shape.2016, Kusum Wadhwa, Anju Loomba, Saraswati Mathematics, Saraswati House Pvt Ltd, →ISBN, page 234. From the entry irregular prism
  • The shell presents a representative nacroprismatic microstructure, with columnar calcitic prisms in the upper and nacreous layer in the lower.2015 July 11, “Dual Roles of the Lysine-Rich Matrix Protein (KRMP)-3 in Shell Formation of Pearl Oyster, Pinctada fucata”, in PLOS ONE, →DOI. From the entry nacroprismatic
  • They observed hard triangular prisms and hard gyrobifastigia to directly transform into their space-filling crystal, while hard truncated octahedra, rhombic.2012, Amir Haji Akbari Balou, Thermodynamics of the Hard Tetrahedron System (PhD Dissertation in Chemical Engineering, University of…. From the entry gyrobifastigium

Meaning of prism

  1. noun An object having the shape of a geometrical prism (sense 1).
  2. noun A cutting (“open passage at a level lower than the surrounding terrain, dug for a canal, railway, or road to go through”) or an embankment shaped like a prism (sense 1) or a number of prisms, such that its volume can be easily calculated.
  3. noun A crystal in which the faces are parallel to the vertical axis.

Full definition of prism

Questions about the plural of prism

What is the plural of prism?
The plural of prism is prisms.
Is prism countable?
Prism is a countable noun.

Source and license

Adapted from Wiktionary: prism (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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