Definition of synergistical in English:

synergistical

adjective

  • Synergistic.

Origin

Mid 17th century; earliest use found in John Gaule (1603/4–1687), Church of England clergyman and author. From post-classical Latin synergisticus + -al; compare -ical.

Pronunciation

synergistical

/ˌsɪnəˈdʒɪstɪkl/