A quadrilateral (four-sided shape) where opposite sides are antiparallel rather than parallel, creating a special crossed or bow-tie-like configuration.
From anti- + parallelogram (a four-sided figure with opposite sides parallel). This term is used in geometry to describe a non-convex quadrilateral with unique properties.
Antiparallelograms appear in mechanical linkages and engineering—they can transform rotational motion in fascinating ways, which is why they show up in certain machine designs and robotic systems.
Complete word intelligence in one call. Free tier — 50 lookups/day.