To determine the precise signification of; to fix the meaning of; to describe accurately; to explain; to expound or interpret; as, to define a word, a phrase, or a scientific term.
Definitions call for concise, clear, authoritative meanings. Details are not required, but boundaries or limitations of the definition should be cited. Keep in mind the class to which a thing belongs and whatever differentiates the particular object from all others in the class.
To state precisely what it is you will investigate and determine the safest and most reliable way to gather information or data that will help answer your question. Reference: A1