 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.
tract of level or undulating grassland in North America, by 1773, from French prairie meadow, grassland, from Old French praerie meadow, pastureland (12c.), from Vulgar Latin *prataria, from Latin pratum meadow, originally a hollow.. The word existed in Middle English as prayere, but was lost and reborrowed to describe the American plains.