Trademarked Substance for Resurfacing the Roads

This page is the CodyCross answer for the clue below from All Things Water, Group 1293, Puzzle 5 (Cruise Ships).

Question is: Trademarked Substance for Resurfacing the Roads

and the answer is: TARMAC

Word Meaning:

TARMAC — Tarmacadam.

Definitions from Wiktionary.