undulary

== English == === Etymology === See undulate, -ary. === Adjective === undulary (comparative more undulary, superlative most undulary) (obsolete) Moving like waves; undulatory. (mathematics) Pertaining to the wave-like curve formed by the size of an ellipse as a function of the position of its focus. === Noun === undulary (plural undularies) An undulary curve.