Pronunciation : Ac*cel"er*o*graph Part of Speech : n. Etymology : [Accelerate + -graph.] (Mil.) Definition : Defn: An apparatus for studying the combustion of powder in guns, etc.
An attractive, affordable boxed reference set featuring best-selling references to help build vocabulary and improve language skills. The boxed set includes:
• The Merriam-Webster Dictionary ― over 75,000 definitions for the words you need today
• The Merriam-Webster Thesaurus ― over 150,000 word choices, plus usage guidance
• Merriam-Webster’s Vocabulary Builder ― learn 3,200 words with quizzes and root words―perfect for test prep!