Tierra __, Island Shared by Chile and Argentina

This page is the CodyCross answer for the clue below from Café, Group 1339, Puzzle 2 (Bakery Display Case).

Question is: Tierra __, Island Shared by Chile and Argentina

and the answer is: DELFUEGO

Word Meaning:

DEL — (mathematical analysis) The symbol ∇ used to denote the gradient operator.

Definitions from Wiktionary.