embolism

Meaning

Noun

• An obstruction or occlusion of an artery by an embolus, that is by a blood clot, air bubble or other matter that has been transported by the blood stream.
• The insertion or intercalation of days into the calendar in order to correct the error arising from the difference between the civil year and the solar year.
• An intercalated prayer for deliverance from evil coming after the Lord's Prayer.

Origin

• From Old French embolisme ("intercalation of days in a calendar to correct errors"), from Late Latin embolismus, from Ancient Greek ἐμβολισμός ("intercalary").