departure

noun

• The act of departing or something that has departed.

  "The departure was scheduled for noon."

• A deviation from a plan or procedure.

  "There are several significant departures, however, from current practice."

• A death.
• The distance due east or west made by a ship in its course reckoned in plane sailing as the product of the distance sailed and the sine of the angle made by the course with the meridian.
• The difference in easting between the two ends of a line or curve.

  "The area is computed by latitudes and departures."

• The desertion by a party to any pleading of the ground taken by him in his last antecedent pleading, and the adoption of another.
• Division; separation; putting away.