caldarium

[ kal-dair-ee-uh m ]
/ kælˈdɛər i əm /
|

noun, plural cal·dar·i·a [kal-dair-ee-uh] /kælˈdɛər i ə/.

(in an ancient Roman bath) a room having a hot bath.

Origin of caldarium

1745–55; < Latin: noun use of neuter of caldārius of warming, equivalent to cal(i)d(us) warm (cal(ēre) to be warm + -idus -id4) + -ārius -ary; see -ium, -arium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for caldarium

caldarium

/ (kælˈdɛərɪəm) /

noun plural -daria (-ˈdɛərɪə)

(in ancient Rome) a room for taking hot baths

Word Origin for caldarium

C18: from Latin, from calidus warm, from calēre to be warm
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