Descriptionary / Marc McCutcheon.

Cover title: Descriptionary : a thematic dictionary

Descriptionary is particularly helpful when looking for a descriptive or technical term, or when you know th subject or meaning but not the word. This book provides indispensable glossaries, arranged by category and subcategory, that define and describe thousands of words. It is a referenece tool that follows the reader's train of thought and helps reach its destination. Defining thousands of terms, organized thematically into more than 20 completely up-to-date subject categories. This third edition contains an expanded and updated section on technology, including computers and the Internet, as well as many new sections, such as Physics, Chemistry, and Astonomy.