Relating to or having the purpose of marking outlines, boundaries, or providing detailed descriptions.
From 'delineate' with the suffix '-ory' (or '-atory'), which creates an adjective meaning 'of or relating to.' This is a less common variant of the '-ive' suffix form.
This is a rare word that sounds formal and technical—you'd see it in older scientific writing where scholars described their work as having a 'delineatory purpose,' meaning they were trying to map out and explain something thoroughly.
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