Single-field dictionary
A single-field dictionary is a specialized dictionary that has been designed and compiled to cover the terms of one particular subject field. Single-field dictionaries should be contrasted with multi-field dictionaries and sub-field dictionaries.
The typology consisting of these three dictionaries is important for a number of reasons. First of all a single-field dictionary is an example of a very specialized dictionary in that it covers only one single subject field. Examples of single-field dictionaries are a dictionary of law, a dictionary of economics and a dictionary of welding.