Définitions
1.AdjectiveHappening every day; daily. .mw-parser-output .defdate{font-size:smaller}
2.AdjectiveHaving the characteristics of something which can be seen, experienced, etc, every day or very commonly.
3.AdjectiveRecurring every twenty-four hours or (more generally) daily (of symptoms, etc).
4.AdjectiveSomething which is considered humdrum or dull.
5.NounA fever which recurs every day; quotidian malaria.
6.NounA daily allowance formerly paid to certain members of the clergy.
7.NounCommonplace or mundane things regarded as a class.