Gibson murmur Gib·son murmur (gĭb'sən)
n.
The typical continuous rumbling murmur associated with patent ductus arteriosus. Also called machinery murmur.
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| the offspring of a zebra and a donkey. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |