Definify.com

Webster 1913 Edition

Caliduct

Cal′i-duct

,

Noun.

[See

.]

A pipe or duct used to convey hot air or steam.

Subterranean

caliducts

have been introduced.

Evelyn.

Webster 1828 Edition

Caliduct

CALIDUCT

,

Noun.

Among the Ancients, a pipe or canal used to convey heat from a furnace to the apartments of a house.