OCD

1.
Office of Civil Defense.
2.
obsessive-compulsive disorder.
abbreviation
1.
okta
obsessive compulsive disorder

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Ocean
[oh-shuh n] /ˈoʊ ʃən/ noun 1. the vast body of salt water that covers almost three fourths of the earth’s surface. 2. any of the geographical divisions of this body, commonly given as the Atlantic, Pacific, Indian, Arctic, and Antarctic oceans. 3. a vast expanse or quantity: an ocean of grass. /ˈəʊʃən/ noun 1. a […]
Oceanarium
[oh-shuh-nair-ee-uh m] /ˌoʊ ʃəˈnɛər i əm/ noun, plural oceanariums, oceanaria [oh-shuh-nair-ee-uh] /ˌoʊ ʃəˈnɛər i ə/ (Show IPA) 1. a large saltwater aquarium for the display and observation of fish and other marine life. /ˌəʊʃəˈnɛərɪəm/ noun (pl) -iums, -ia (-ɪə) 1. a large saltwater aquarium for marine life
Oceanaut
[oh-shuh-nawt, -not] /ˈoʊ ʃəˌnɔt, -ˌnɒt/ noun 1. .

Ocean-city
noun 1. a town in SE New Jersey.
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noun 1. the branch of engineering that deals with the development of equipment and techniques for the exploration of the ocean floor and exploitation of its resources.