(From Ana Lysis 575 to resolve). In chemistry it is the term used for decompounding any mixed body, and reducing it into its constituent parts. The chemists make use of two modes of analysis: 1. by fire; 2. by menstrua. Indeed the modes of decompounding bodies are all founded on the difference of the properties belonging to the various principles of the body to be analysed. Suppose, for instance, a body to be composed of several principles, possessed of different degrees of volatility, the volatile parts will rise in proportion to the degrees of volatility which they possess on the application of heat; and if any are fixed, they will remain in the retort or crucible. This is called analysis by fire. But when a body is compounded of several substances, one of which, for instance, is soluble only in spirits of wine, a second in water, and a third in aether, these substances may be very easily separated from each other, by submitting successively the compound to the action of these menstrua. This is called the analysis by menstrua. See, on this subject, Macquer's Chemical Dictionary; Memoirs of the Royal Academy of Sciences, for the years 1719, 1720, 1721; Elements and Principles of Chemistry, by Lavoisier, Fourcroy, Chaptal, and Thomson.

In anatomy, the dissection of the human body is called analysis.