Definition of cisterna
: 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
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Merriam-Webster unabridged
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Time Traveler for cisterna
The first known use of cisterna was circa 1860
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