active zone

noun

Medical Definition of active zone

: a specialized area on the presynaptic membrane of a nerve cell where synaptic vesicles cluster and are released into the synaptic cleft At the site of contact, the presynaptic plasma membrane develops into an active zone, which is where synaptic vesicles undergo exocytosis and release neurotransmitters into the synaptic cleft.— Thomas Biederer et al., Science, 30 Aug. 2002

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Dictionary Entries Near active zone

active transport

active zone

activin

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Cite this Entry

“Active zone.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/active%20zone. Accessed 19 Sep. 2021.

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