natatorium

[ ney-tuh-tawr-ee-uh m, -tohr-, nat-uh- ]
/ ˌneɪ təˈtɔr i əm, -ˈtoʊr-, ˌnæt ə- /

noun, plural na·ta·to·ri·ums, na·ta·to·ri·a [ney-tuh-tawr-ee-uh, -tohr-, nat-uh-] /ˌneɪ təˈtɔr i ə, -ˈtoʊr-, ˌnæt ə-/.

a swimming pool, especially one that is indoors.

Origin of natatorium

1885–90; < Late Latin natātōrium swimming place, equivalent to Latin natā(re) to swim + -tōrium -tory2
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British Dictionary definitions for natatorium

natatorium

/ (ˌneɪtəˈtɔːrɪəm) /

noun plural -riums or -ria (-rɪə)

rare a swimming pool, esp an indoor pool

Word Origin for natatorium

C20: from Late Latin: swimming place, pool
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