An apparatus for measuring the heat generated by a chemical reaction, change of state, or formation of a solution.
The part of this apparatus, usually a container for holding a sample, in which the heat measured causes a change of state.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.