Plasma Arc Machining (PAM) Plasma arc machining is a nontraditional thermal process. Plasma is defined as a gas that has been heated to a sufficiently high temperature to become partially ionized and therefore electrically conductive. The term plasma, as employed in physics, means ionized particles.
Recurring vs. Reoccurring. Reoccur and recur are verbs that share a common root word. While they are very close in meaning, they are not the same. Something that is recurring happens over and over again, possibly at regular intervals. In contrast, something that is reoccurring is simply happening again but not always repeatedly.
Added to the Beginning of a Word to Change Its Meaning or Form. I don't trust the guy, said comedian Jerry Seinfeld in an episode of his sitcom Seinfeld (1995). I think he regifted, then he degifted.. Seinfeld used two common prefixes (re- and de-) to create two new words.