Lateran adjective. ['lat(ǝ)rǝn] ME.
[Latin Laterana, -um, from the ancient Roman family of the Plautii Laterani.]
Of or pertaining to the district of the Lateran Rome, site of a palace which was formerly the official residence of the popes, and a Basilica or church dedicated to St John; spec. designating or pertaining to each of the five general councils of the Western Church held in the Lateran Palace between 1123 and 1512.

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