What does "oceanography" mean?

The exploration and scientific study of the oceans and ocean floor.

What is a synonym for "oceanography"?

Common synonyms include: altimetry, aquiculture, bathometry, bathymetry, biometrics, biometry.

Pronounced //ˌoʊʃəˈnɑɡɹəfi//.

/ˌoʊʃəˈnɑɡɹəfi/ noun

noun ·Uncommon ·Advanced level

Noun

1
The exploration and scientific study of the oceans and ocean floor. uncountable
2
the branch of science dealing with physical and biological aspects of the oceans wordnet

"Oceanography was pioneered by voyages of exploration."

From ocean + -ography.