The study of marine biology includes a wide variety of disciplines such as astronomy, biological oceanography, cellular biology, chemistry, ecology, geology, meteorology etc.This Glossary app provides you a comprehensive list of around 450 Marine related terms with its short description/meaning which guides you in understanding the terminology better.In Simple terms, marine biology is the study of life in the oceans and other saltwater environments such as estuaries and wetlands. All plants and marine life forms are included from the largest to smallest sea creatures.