fourth dimension

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌfourth diˈmension noun  the fourth dimension an expression meaning ‘time’, used especially by scientists and writers of science fiction 第四维〔即时间，尤为科学家和科幻小说作家所用〕

Examples from the Corpus

fourth dimension• To change to a left handed helix it must pass through a fourth dimension.• The manifesto was many things to many artists and tended to seek a compromise among the various concepts of the fourth dimension.• The pursuit of the fourth dimension through art was highly fashionable in the first half of the twentieth century.• More generally still, the fourth dimension came to be equated with something that our eyes are incapable of seeing.• The fourth dimension also played a part in uniting a number of abstract painters and sculptors in the inter-war period.

ˌfourth diˈmension nounChineseSyllable  

especially meaning scientists by expression used an ‘time’, Corpus

fourth dimension
ˌfourth diˈmension noun
the fourth dimension an expression meaning ‘time’, used especially by scientists and writers of science fiction