Merriam-Webster Collegiate Dictionary - synoptic

 also ~al  adjective  Etymology: Greek synoptikos, from synopsesthai  Date: 1763  1. affording a general view of a whole  2. manifesting or characterized by comprehensiveness or breadth of view  3. presenting or taking the same or common view; specifically often capitalized of or relating to the first three Gospels of the New Testament  4. relating to or displaying conditions (as of the atmosphere or weather) as they exist simultaneously over a broad area  • ~ally adverb