Term: heat pump: apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building
Broader: apparatus: equipment designed to serve a specific function | Unrelated: hodgkin's disease: a malignant disorder in which there is progressive (but painless) enlargement of lymph tissue followed by enlargement of the spleen and liver
Broader: apparatus: equipment designed to serve a specific function | Unrelated: dowse: searching for underground water or minerals by using a dowsing rod
Broader: apparatus: equipment designed to serve a specific function | Unrelated: humanness: the quality of being human
Broader: apparatus: equipment designed to serve a specific function | Unrelated: comb-out: the act of removing tangles from you hair with a comb
Broader: apparatus: equipment designed to serve a specific function | Unrelated: hacker: someone who plays golf poorly
Broader: apparatus: equipment designed to serve a specific function | Unrelated: boldface: a typeface with thick heavy lines
Broader: apparatus: equipment designed to serve a specific function | Unrelated: stage director: someone who supervises the actors and directs the action in the production of a stage show
Broader: apparatus: equipment designed to serve a specific function | Unrelated: cannon: (Middle Ages) a cylindrical piece of armor plate to protect the arm
Broader: apparatus: equipment designed to serve a specific function | Unrelated: laminectomy: surgical removal of the bony arches on one or more vertebrae
Broader: apparatus: equipment designed to serve a specific function | Unrelated: bad egg: (old-fashioned slang) a bad person