 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.
verb (used without object), ululated, ululating. 1. to howl, as a dog or a wolf; hoot, as an owl. 2. to utter howling sounds, as in shrill, wordless lamentation; wail. 3. to lament loudly and shrilly. Origin of ululate.