 Summer of '69  is a song recorded by Canadian recording artist Bryan Adams, from his fourth studio album, Reckless (1984). The song was written by Adams and Jim Vallance, a long-time writing partner of Adams.
â¢ UNDULATION (noun). The noun UNDULATION has 3 senses: 1. an undulating curve. 2. wavelike motion; a gentle rising and falling in the manner of waves. 3. (physics) a movement up and down or back and forth. Familiarity information: UNDULATION used as a noun is uncommon.
âFor most riders, 10 to 13 miles of flat or undulating road will do the trick.â. âHeading out of town the first thing you notice are lush fields and undulating green hills.â. âWith its saturated colors and full, undulating rhythms, the mural is like a flower springing out of a crack in a concrete wall.â.