丁度可知差異

ちょうどかちさい

noun

•

just-noticeable difference (psychology), JND

丁	street, ward, town, counter for guns, tools, leaves or cakes of something, even number, 4th calendar sign
度	degrees, occurrence, time, counter for occurrences, consider, attitude
可	can, passable, mustn't, should not, do not
知	know, wisdom
差	distinction, difference, variation, discrepancy, margin, balance
異	uncommon, different, queerness, strangeness, wonderful, curious, unusual