: for instance a(1) : a group of interacting bodies beneath the affect of linked forces a gravitational system Perspicacious Of acute discernment; getting eager insight; mentally perceptive; owning or demonstrating penetrating mental discernment; getting or revealing eager insight and superior judgment; acutely perceptive or discerning; crystal clear-eyed, very clear-sighted, https://sergio3suss.digitollblog.com/30791148/the-definitive-guide-to-construction