Plural of diaphragm

regular plural

The plural of diaphragm is diaphragms.

Forms of diaphragm

There also were five broken panes of glass on the two huge, rubberlike diaphragms that equalize air pressure within the dome as the artificial atmosphere expands and contracts with temperature variations, he said.1994 May 4, “Two Former Biosphere Workers Are Accused of Sabotaging Dome”, in The Associated Press
The graphite fibers are augmentedly drawn and draped into shape between the confining superplastic diaphragms.2000, Patrick B. Berbon, Superplasticity -Current Status and Future Potential, page 213. From the entry augmentedly
Externally the cars are a departure from the previous awkward bullet-nose design, simplifying the connecting of the cars with diaphragms.1961 November, D. W. Beadle, “New long-distance electric units for the Italian State Railways”, in Trains Illustrated, page 670. From the entry bullet-nose

noun In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs.
noun Any of various membranes or sheets of muscle or ligament which separate one cavity from another.
noun A contraceptive device consisting of a flexible cup, used to cover the cervix during intercourse.

What is the plural of diaphragm?: The plural of diaphragm is diaphragms.
Is diaphragm countable?: Diaphragm is a countable noun.

Adapted from Wiktionary: diaphragm (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.

Last updated: 2026-09-02

Cite this page: “Plural of diaphragm.” Word.ws, https://word.ws/plural/diaphragm. Based on Wiktionary, CC BY-SA 4.0.