 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.
n. 1. a strong rush or sweep; sudden increase: a surge of anger. 2. (Physical Geography) the rolling swell of the sea, esp after the passage of a large wave. 3. a heavy rolling motion or sound: the surge of the trumpets. 4. an undulating rolling surface, as of hills. 5. a billowing cloud or volume.