Still, a highly irregular period is usually a sign that something else isn't right in your body.. Take note of these 10 things that could be messing with your menstrual cycle, and see your doc if anything seems too far off. 1 of 12. View as one page.
immutable - not subject or susceptible to change or variation in form or quality or nature; the view of that time was that all species were immutable, created by God
The more general Python terminology for word and definition are key and value. Given a key, you can look up the corresponding value. The only restriction on the key is that it be an immutable type. This means that a value of the keyâs type cannot be changed internally after it is initially created.