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noun
Any of many cup-shaped structures in the cell membranes of eukaryotic cells where vesicles dock in the process of vesicle fusion and secretion.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From poro- + -some.
