[ oh-shuh-nog-ruh-fee, oh-shee-uh- ]
/ ˌoʊ ʃəˈnɒg rə fi, ˌoʊ ʃi ə- /


the branch of physical geography dealing with the ocean.

Nearby words

  1. oceanid,
  2. oceanids,
  3. oceanity,
  4. oceanog.,
  5. oceanographer,
  6. oceanologic,
  7. oceanology,
  8. oceanside,
  9. oceanus,
  10. oceanus procellarum

Origin of oceanography

First recorded in 1855–60; ocean + -o- + -graphy

Related formso·cea·nog·ra·pher, nouno·cea·no·graph·ic [oh-shuh-nuh-graf-ik] /ˌoʊ ʃə nəˈgræf ɪk/, o·cea·no·graph·i·cal, adjectiveo·cea·no·graph·i·cal·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for oceanography

British Dictionary definitions for oceanography


/ (ˌəʊʃəˈnɒɡrəfɪ, ˌəʊʃɪə-) /


the branch of science dealing with the physical, chemical, geological, and biological features of the oceans and ocean basins
Derived Formsoceanographer, nounoceanographic (ˌəʊʃənəˈɡræfɪk, ˌəʊʃɪə-) or oceanographical, adjectiveoceanographically, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for oceanography



1859, coined in English from ocean + -graphy; on analogy of geography. French océanographie is attested from 1580s but is said to have been rare before 1876. Related: Oceanographic.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for oceanography


[ ō′shə-nŏgrə-fē ]

The scientific study of oceans, the life that inhabits them, and their physical characteristics, including the depth and extent of ocean waters, their movement and chemical makeup, and the topography and composition of the ocean floors. Oceanography also includes ocean exploration. Also called oceanology
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.