Dictionary entry overview: What does accretion mean? â¢ ACCRETION (noun) The noun ACCRETION has 6 senses: 1. an increase by natural growth or addition 2. something contributing to growth or increase 3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases 4.
Great Barrier Reef. The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland, Australia.
Great Barrier Reef, Queensland . The Great Barrier Reef can be found in the Coral Sea on Australiaâs East Coast. The reef is not a single entity or location but thousands of islands and reefs that begin from the tip of Queensland at Cape York to Bundaberg in the south.