The term "excitatory synapse" refers to a type of synapse that increases the likelihood of an action potential in the post-synaptic neuron. There are several other terms that can be used to describe this type of synapse, including "stimulatory synapse", "facilitatory synapse", and "depolarizing synapse".
All of these terms convey the idea that the synapse is causing an increase in the activity of the post-synaptic neuron. Other related terms include "glutamatergic synapse" and "aspartate synapse", which refer specifically to synapses that use the neurotransmitters glutamate and aspartate respectively to mediate their effects.
Regardless of the terminology used, excitatory synapses play a critical role in neural communication and are essential for a wide range of processes, including learning, memory, and motor control.