Definitions

Were Noah's sons (Shem, Ham, and Japheth) triplets?

I was reading an article in The Yeshiva World, and the word 'przitus' was used, and I didn't know what it meant. Would it be possible to have the word defined, if that is done here? Thank you for your attention to this note, and to any help you may give me.

Hi, what is the definition of "frum" and what determines if you are "frum or not?" Thanks