heterocyst

noun
het·​ero·​cyst | \ ˈhe-tə-rō-ˌsist How to pronounce heterocyst (audio) \

Definition of heterocyst

: a large transparent thick-walled cell that is found in the filaments of some cyanobacteria and is the site of nitrogen fixation

Other Words from heterocyst

heterocystous \ ˌhe-​tə-​rō-​ˈsi-​stəs How to pronounce heterocystous (audio) \ adjective

First Known Use of heterocyst

1872, in the meaning defined above

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The first known use of heterocyst was in 1872

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More from Merriam-Webster on heterocyst

Britannica.com: Encyclopedia article about heterocyst

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