a.1.Situated beyond, or outside of, the tropics; extratropical; also, having an excessively tropical temperature; warmer than the tropics.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The result is a syncopated beat familiar from many Native North American dances, but with a syncopated, ultratropical feel.