Volatile Compounds. Definition - What does Volatile Compounds mean? In the tasting of a wine, the volatile compounds are those compounds which evaporate from the wine and become suspended on the surface of the wine and in its holding vessel (i.e. glass, decanter, etc.) They are the very compounds which contribute to a wine's aroma. The compounds are vaporized and noted in the retro-nasal region of our palates. WineFrog explains Volatile Compounds It is during the periods of fermentation and first few months following fermentation that chemical reactions between wine and compounds will have the most influence on a wine's aroma than during any other stage in the wine's life.
Exposition[edit] Expository writing is a type of writing where the purpose is to explain, inform, or even describe. It is considered to be one of the four most common rhetorical modes. The purpose of expository writing is to explain and analyze information by presenting an idea, relevant evidence, and appropriate discussion. In narrative contexts (such as history and fiction), exposition provides background information to teach or entertain.
When we read fiction novels, we are taking in narrative text. This type of text tells a story and generally uses a lot of emotion. The opposite of this is expository text, which exists to provide facts in a way that is educational and purposeful. The text is fact-based with the purpose of exposing the truth through a reliable source. True and deliberate expository text will focus on educating its reader. Other descriptors of exposition are clear, concise, and organized writing. Expository text gets to the point quickly and efficiently. The opposite of this is narrative text, which tells a story and generally uses a lot of emotion. Expository text is information-based text.