per-

per- word element [L.], (1) throughout; completely; extremely; (2) in chemistry, a large amount; combination of an element in its highest valence.

---

per-

pref.

1. Thoroughly; completely; intensely: perfuse.

2. Containing an element in its highest oxidation state: perchloric acid.

3. Containing a large or the largest possible proportion of an element: peroxide.

4. Containing the peroxy group: peracid.

---

per-,

1 prefix meaning "throughout, or completely": peracephalus, perfuse, permeable.

2 prefix meaning "a large amount (in chemical terms)" or designating a combination of an element in its highest valence: peracetate, peracid, perhydride.

3 prefix meaning "around, near, enclosing": periapical, pericardium.

---

per-

word element. [L.]

1. throughout, completely, extremely.

2. in chemistry, a large amount, combination of an element in its highest valency.