periplasm

noun

peri·​plasm ˈper-ə-ˌpla-zəm How to pronounce periplasm (audio)
: the region in a gram-negative bacterium between the plasma membrane and an outer surrounding membrane that contains especially enzymes and a thin layer of peptidoglycan
periplasmic adjective

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of periplasm was in 1961

Dictionary Entries Near periplasm

Cite this Entry

“Periplasm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periplasm. Accessed 2 Feb. 2023.

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