 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.
Undefined Terms, Definitions, Postulates, Segments, and Angles. Section 2.1. Geometry, as an axiomatic system, begins with a small set of undefined. terms that can be described and builds. through the addition of definitions. and postulates to the point where. mathematical theorems can be. proven. -Statements of meaning.