noun
- The largest coral reef in the world; in the Coral Sea off the northeastern coast of Australia. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). great barrier reef. Retrieved September 25, 2026, from http://smartdefine.org/great_barrier_reef/definitions/1226902 |
| Chicago | WordNet. 2010. "great barrier reef" http://smartdefine.org/great_barrier_reef/definitions/1226902 (accessed September 25, 2026). |
| Harvard | WordNet 2010, great barrier reef, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/great_barrier_reef/definitions/1226902>. |
| MLA | WordNet. "great barrier reef" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/great_barrier_reef/definitions/1226902> |