synaptosome

noun

syn·ap·to·some sə-ˈnap-tə-ˌsōm

: a nerve ending that is isolated from homogenized nerve tissue (as of the brain)

synaptosomal

sə-ˌnap-tə-ˈsō-məl

adjective

Word History

Etymology

synaptic + -o- + -some entry 3

First Known Use

1964, in the meaning defined above

Time Traveler

The first known use of synaptosome was in 1964

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Style

“Synaptosome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/synaptosome. Accessed 8 Jul. 2026.

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Medical Definition

synaptosome

noun

syn·ap·to·some sə-ˈnap-tə-ˌsōm

: a nerve ending that is isolated from homogenized nerve tissue (as of the brain)

synaptosomal

-ˌnap-tə-ˈsō-məl

adjective

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synaptosome

noun

Word History

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