拡張倍精度

かくちょうばいせいど

noun

•

extended double-precision

拡	broaden, extend, expand, enlarge
張	lengthen, counter for bows & stringed instruments, stretch, spread, put up (tent)
倍	double, twice, times, fold
精	refined, ghost, fairy, energy, vitality, semen, excellence, purity, skill
度	degrees, occurrence, time, counter for occurrences, consider, attitude