low·er case
noun/ˌləʊə ˈkeɪs/
/ˌləʊər ˈkeɪs/
[uncountable] (specialist)- (in printing and writing) the small form of letters, for example a, b, c rather than A, B, C
小写（字母） - in lower case The text is all in lower case.
正文一律用小写字体。 - lower-case letters
小写字母
Word Originreferring originally to the lower of two cases of type positioned on an angled stand for use by a compositor (see upper case). - in lower case The text is all in lower case.