PHOSPHOINOSITIDE By N., Pam M.S. - April 7, 2013 noun. any of a category of second messengers which are typical in postsynaptic cells. PHOSPHOINOSITIDE: "The presence of phosphoinositides is hard to ignore in the third slide." Related Psychology Terms NEURAL INTEGRATION PROTOTYPE PIMOZIDE POSTSYNAPTIC POTENTIAL (PSP) PIPERIDINEDIONES CONCEPT LEARNING CONCEPT SUBORDINATE CATEGORY PERPHENAZINE GAMETE Cite this page: N., Pam M.S., "PHOSPHOINOSITIDE," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/phosphoinositide/ (accessed May 10, 2021).