 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.
1. having an almost vertical slope or pitch, or a relatively high gradient, as a hill, an ascent, or stairs. 2. (of a price or amount) unduly high; exorbitant. 3. high or lofty. 4. a steep place; declivity, as of a hill.