Definition of Easter Term
In English law, formerly one of the four movable terms of the courts, but afterwards a fixed term, beginning on the 15th of April and ending on the 8th of May in every year, though sometimes prolonged so late as the 13th of May, under St. 11 Geo. IV, and 1 Wm. IV, c. 70. From November 2, 1875, the division of the legal year into terms was abolished so far as concerns the administration of justice.
That's the definition of Easter Term in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.