Main Entry: sum·mate

Pronunciation: \ˈsəm-ˌāt\

Function: verb

Inflected Form(s): sum·mat·ed; sum·mat·ing

transitive verb

: to add together or sum up <impulses…are summated with the subliminal impulses arriving over the sensory neuron—L. L. Langley et al>

intransitive verb

: to form a sum or cumulative effect