science, scientific discipline - a particular branch of scientific knowledge; "the science of genetics"

architecture - the discipline dealing with the principles of design and construction and ornamentation of fine buildings; "architecture and eloquence are mixed arts whose end is sometimes beauty and sometimes use"

geomorphology, morphology - the branch of geology that studies the characteristics and configuration and evolution of rocks and land forms

Pangaea, Pangea - (plate tectonics) a hypothetical continent including all the landmass of the earth prior to the Triassic period when it split into Laurasia and Gondwanaland