Caldarium

//kælˈdɛəɹi.əm// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    In Roman baths, the hottest room, with a plunge-pool. It preceded the tepidarium and frigidarium. historical
  2. 2
    In modern spas, a room with a hot floor.
  3. 3
    An intermediate or warm greenhouse.

    "There is a pretty large glass-house, one-half being a caldarium, the other a tepidarium"

Synonyms

All synonyms
bathbathhousebathroombathscalidariumlavatory

Example

More examples

"There is a pretty large glass-house, one-half being a caldarium, the other a tepidarium"

Etymology

Unadapted borrowing from Latin caldārium (“room containing warm water for bathing”), substantive of caldārius (“of, pertaining to or suitable for bathing”), from caldus (“warm, hot”) + -ārius, alternative form of calidus, from caleō (“I am warm or hot; glow”).

Related phrases

roman baths

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.