What is the difference between hard return and soft return? A hard return is when the user hits the return or enter key to bring subsequent text onto a new line. If you keep typing until the text reaches the end of the line and it star â¦ ts on a new line itself automatically, that is a soft return.
Definition of litmus. 1  1 : a coloring matter from lichens that turns red in acid solutions and blue in alkaline solutions and is used as an acid-base indicator. 2  2 : the critical factor in a litmus test; also : litmus test.
A litmus test is a chemistry lab test use to sort acids and bases. It is an obvious reaction and an old one. Of itself, it has nothing to do whatever with politics. The term litmus test has been applied to several non-science situations and it merely means that something will be shown to be true or false in a given situation.