Off on a Completely Different Line of Thought
This page is the CodyCross answer for the clue below from Treasure Island, Group 1037, Puzzle 4 (Thar She Blows).
Question is: Off on a Completely Different Line of Thought
and the answer is: TANGENT
Word Meaning:
TANGENT — (differential geometry) A straight line touching a curve at a single point without crossing it there.
Definitions from Wiktionary.