The term 'Symbol of Dryness' can be represented by two crossword solutions: 'BONE' and 'DUST'. BONE is a hard, dry material that makes up the skeleton of most animals. It is often used as a metaphor for something that is strong and enduring. DUST is a fine powdery substance made up of tiny particles of matter. It is often used to symbolize something that is dry, lifeless, and easily dispersed. Both BONE and DUST are symbols of dryness, representing the lack of moisture in an environment.