 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.
adj. undeviating; uninterrupted. 1  beeline. 2  continuous. 3  even. 4  horizontal. 5  in bee line. 6  in straight line. 7  linear. 8  nonstop. 9  not crooked. 10  point-blank. 11  right. 12  shortest. 13  straight. 14  straight ahead. 15  straightaway. 16  through. 17  true. 18  unbroken. 19  unswerving.