Loops in the night in and out, high up in the air, Like a serpent of stars with the coil and Undulant reach of waves.
"America To-day, Observations and Reflections"
William Archer
Against the blue background of the sky, green hill-tops trace an Undulant line.
"Bastien Lepage"
Fr. Crastre
The Tree, quivering with unbearable clarity in the thick, dim air, writhed above him, blossoms blazing with bloody radiance and every branch vibrant and Undulant to the tune of that unholy song.
"The Tree of Life"
Catherine Lucille Moore