Kamsin \Kam*sin"\, Khamsin \Kham*sin"\, n. [Ar. khams[imac]n,
fr. khams[=u]n, oblique case khams[imac]n, fifty; -- so
called because it blows for about fifty days, from April till
June.]
A hot southwesterly wind in Egypt, coming from the Sahara.
[Written also {Khamseen}.]
[1913 Webster]