Definition of pericardiotomy in US English:

pericardiotomy

noun

  • Surgical incision into the pericardium; an instance of this.

Origin

Early 20th century; earliest use found in William Dorland (1864–1956), obstetrician. From pericardium + -o- + -tomy.

Pronunciation

pericardiotomy

/ˌpɛrɪkɑːdɪˈɒtəmi/