Inner Margins of the Pages of a Book
This page is the CodyCross answer for the clue below from Life on Wheels, Group 1789, Puzzle 5 (Fuel Efficiency).
Question is: Inner Margins of the Pages of a Book
and the answer is: GUTTER
Word Meaning:
GUTTER — A prepared channel in a surface, especially at the side of a road adjacent to a curb, intended for the drainage of water.
Definitions from Wiktionary.