Diatessaron
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): ( n.) A continuous narrative arranged from the first four books of the New Testament.
(2): ( n.) The interval of a fourth.
(3): ( n.) An electuary compounded of four medicines.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
in Biblical literature, a harmony of the four Gospels. (See Harmony); (See Tatian).