To render complex or intricate; fold or twist together; entangle; intertwine; interweave; involve: as, to complicate matters, he was suddenly taken ill.To form by combination of parts or elements; combine; compound.Composed of interconnected parts; complex.Intricate; involved.In botany, folded upon itself: as, a complicate embryo: same as conduplicate.In entomology, folded longitudinally once or several times, as the wings of wasps, the posterior wings of grasshoppers, etc.