a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
a machine used to maintain the circulation and oxygenation of the blood during heart surgery
heart-lung machine n.
An apparatus through which the blood is temporarily diverted, especially during heart surgery, to oxygenate it and pump it throughout the body.
An apparatus through which blood is temporarily diverted, especially during heart surgery, in order to oxygenate and pump it, thus maintaining circulation.
- Heart not in it
see under heart in it
noun 1. a short novel (1902) by Joseph Conrad. (1902) A short novel by Joseph Conrad. It concerns a seafarer, Marlow, who is sent to the interior of Africa in search of a “mad adventurer” named Kurtz. The book’s title refers both to the location of the story and to the evil and darkness in […]
- Heart of gold
A very kind and good nature, as in Bill is very generous; he has a heart of gold. This expression alludes to gold in the sense of “something valued for its goodness.” [ Late 1500s ]
noun 1. the stripped terminal bud of a cabbage palm, especially of the genus Euterpe, eaten in salads or as a vegetable.
- Heart of stone
A very cold and unfeeling nature, as in You’ll get no sympathy from her; she has a heart of stone. This idea dates from ancient times and in English appeared in the Bible (Job 41:24). [ Early 1600s ]