a. rare. [ad. Gr. συνεργητικός, f. συνεργεῖν to work together, co-operate.] Working together, co-operative: = SYNERGIC. So † Synergetical a. Obs.
1682. H. More, Annot. Glanvill’s Lux O., 120. Acting at two places at once according to its Synergetical vertue.
1836. Smart, Synergetic.
1889. Dunman & Wingrave, Gloss. Anat. Phys. Biol. Terms, App., Synergetic muscles … are those which together subserve a certain kind of movement.
