#216. Parallelism. -- N. {ant. 216a} parallelism; coextension[obs]; equidistance[obs]; similarity &c. 17.
Adj. parallel; coextensive; equidistant.
Adv. alongside &c. (laterally) 236. #216a. Perpendicularity -- N. {ant. 216} perpendicularity, orthogonality; verticality, &c. 212.
V. be perpendicular, be orthogonal; intersect at right angles, be rectangular, be at right angles to, intersect at 90 degrees; have no correlation.
Adj. orthogonal, perpendicular; rectangular; uncorrelated.