Definition of "delineator" [de•lin•e•a•tor]

• One who, or that which, delineates. (noun)
• A perambulator which records distances and delineates a profile, as of a road. (noun)

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• "The S&P500 Index and the S&P Depositary Receipts are trading just above their 20-month moving average, which we often refer to as a delineator between a technical bull and bear market."
• "From the very beginning he was a brilliant delineator of the human face in chalk, crayon, pencil or pastel."
• "Apart from language, international football is the most visible delineator of sovereignty among eurozone countries and anything that takes down those boundaries would be viewed favourably among some European politicians."