undulary

comparative more undulary · superlative most undulary

1. obsoleteMoving like waves; undulatory.

   yet do the blasts and undulary breaths thereof maintain no certainty in their course

   1672, Sir Thomas Browne, chapter 17, in [Pseudodixia Epidemica]

2. mathematicsPertaining to the wave-like curve formed by the size of an ellipse as a function of the position of its focus.

   The undulary curve (fig. 2.6c) is formed by the focus of an ellipse rolling on the axis.

   2012, Jean Berthier, Kenneth A. Brakke, The Physics of Microdroplets, pages 1-95

plural undularies

1. An undulary curve.

   An undulary can be expressed in parametric form using elliptic integrals.

   2012, Jean Berthier, Kenneth A. Brakke, The Physics of Microdroplets, pages 1-95