We don't have synonyms for facilitations yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are facilitation, facilitating and facilitators.
(n) :
(physiology) The process of synapses becoming more capable of transmitting the same type of signal each time certain types of sensory signals pass through sequences of these synapses.
(n) :
(physiology) The process of synapses becoming more capable of transmitting the same type of signal each time certain types of sensory signals pass through sequences of these synapses.