The term 'clearly delineated' can be DEFINED as having a distinct boundary or outline that is easily seen. This term can be broken down into two crossword solutions: 'DEFINED' (7 letters) and 'etched' (6 letters). The word 'DEFINED' implies that the boundary or outline of something is clearly stated or described, while the word 'etched' suggests that the boundary or outline is deeply engraved or cut into something. Together, these two words suggest that the boundary or outline of something is both clearly stated and deeply engraved.