Anagrams of: PORINGOVER_

• causing or tending to cause anger or resentment

• any external parasitic organism (as fleas)

• extremely annoying or displeasing

• causing irritation or annoyance

• of or relating to the null set (a set with no members)

• a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential

• a mathematical element that when added to another number yields the same number

• the point on a scale from which positive or negative numerical quantities can be measured

• the sight setting that will cause a projectile to hit the center of the target with no wind blowing

• indicating the absence of any or all units under consideration

• having no measurable or otherwise determinable value

• indicating an initial point or origin

• adjust (an instrument or device) to zero value

• adjust (as by firing under test conditions) the zero of (a gun)

• someone who deliberately foments trouble

• a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face

• a brim that projects to the front to shade the eyes

• something given for victory or superiority in a contest or competition or for winning a lottery

• goods or money obtained illegally

• something given as a token of victory

• of superior grade

• hold dear

• to move or force, especially in an effort to get something open

• regard highly; think much of