cisterna
noun
cis·ter·na
si-ˈstər-nə 
plural cisternae
si-ˈstər-ˌnē
: cistern sense 3: such as
a
: one of the large spaces under the arachnoid membrane
b
: one of the flattened vesicles comprising the Golgi apparatus and the part of the endoplasmic reticulum studded with ribosomes
Cite this Entry
“Cisterna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cisterna. Accessed 31 Oct. 2025.
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cisterna
noun
cis·ter·na
sis-ˈtər-nə
plural cisternae
-ˌnē
: cistern: as
a
b
c
: one of the interconnected flattened vesicles or tubules comprising the endoplasmic reticulum
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