 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. calmÂ·er, calmÂ·est. 1. Nearly or completely motionless; undisturbed: the calm surface of the lake. 2. Not excited or agitated; composed: The president was calm throughout the global crisis. n. 1. a. An absence or cessation of motion; stillness.