srial

n. (the path of a point in a plane moving around a centred point while continuously receding from or approaching it; a three-dimensional curve with one or more turns about an axis) सर्पिल (न.), cf.helix हेलिक्स adj. (of, relating to, or resembling a spiral) सर्पिलरूप, सर्पिलकार, सर्पिल—