What does caldaria mean?
Caldaria is a rare plural noun used in historical and architectural writing for the heated rooms or hot-water baths associated with ancient Roman bathhouses. The form comes from Latin caldaria, the plural of caldarium, and normally takes plural agreement. Descriptions of Roman bathing complexes use it to distinguish the hot rooms from spaces such as frigidaria, or cold baths, and tepidaria, or warm baths. Because the word is uncommon, it is encountered mainly in archaeological, architectural, and historical sources rather than everyday speech. Its vocabulary belongs to a technical Latin tradition: related Latin words include calidus, meaning “hot,” and calor, meaning “heat,” while English derivatives such as calfaction, more conventionally spelled calfaction, are not common. Knowing caldaria is therefore chiefly valuable when reading descriptions of Roman baths, where the Latin terminology conveys the building's carefully differentiated sequence of cold, warm, and hot bathing rooms.
noun (plural only)A plural noun for the heated rooms or hot-water baths of ancient Roman bathhouses. The form is the plural of the Latin-derived singular caldarium.
- The heated rooms or hot-water baths in an ancient Roman bathhouse.
"The excavated remains of the Roman bathhouse include two caldaria positioned around a central furnace."
"The caldaria were heated by furnaces beneath the floor."
"Architectural drawings identify the caldaria as the bathhouse's two hot rooms."
Caldaria is itself a plural-only noun. The corresponding singular is caldarium.
"The site's two caldaria were heated from a furnace beneath the floor."
Beneath the steamy rooms of a Roman bathhouse, furnaces turned cold water into the setting for an ancient hot bath.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Words that share this root
How caldaria is actually used
This is a rare, plural-only historical and technical term, encountered chiefly in archaeological and architectural writing. It normally takes plural agreement and should not be confused with the volcanic-geology term caldera.
Easily confused with caldaria
A caldera is a large volcanic depression, whereas caldaria are heated rooms or hot baths in Roman bathhouses.