(during meiosis) occurring before the pairing of chromosomes
presynaptic in American English
(ˌprisɪˈnæptɪk)
adjective
Physiology
being or occurring on the transmitting end of a discharge across a synapse
Derived forms
presynaptically
adverb
Word origin
[1905–10; pre- + synaptic]This word is first recorded in the period 1905–10. Other words that entered Englishat around the same time include: airway, aspect ratio, overcall, scrounge, white listpre- is a prefix occurring originally in loanwords from Latin, where it meant “before”(preclude; prevent); applied freely as a prefix, with the meanings “prior to,” “in advance of,” “early,”“beforehand,” “before,” “in front of,” and with other figurative meanings (preschool; prewar; prepay: preoral; prefrontal)
Examples of 'presynaptic' in a sentence
presynaptic
Anandamide molecules then diffuse back toward the presynaptic neuron, where they bind receptors that temporarily shut down neurotransmission.