Anagrams of: EUROPA_

• Neither reflecting nor emitting light.

• Allowing little light to pass through, not translucent or transparent.

• Unclear, unintelligible, hard to get or explain the meaning of

• Obtuse, stupid.

• Describes a type for which higher-level callers have no knowledge of data values or their representations; all operations are carried out by the type's defined abstract operators.

• not transmitting or reflecting light or radiant energy; impenetrable to sight

• hard or impossible to understand

• President.

• a sudden event that imparts energy or excitement, usually with a dramatic impact

• strike suddenly and with force

• kill with or as if with a burst of gunfire or electric current or as if by shooting

• strike at with firepower or bombs

• cook or heat in a microwave oven

• a light shade of blue

• of a deep somewhat purplish blue color similar to that of a clear October sky

• color azure

• A form of croquet using short-handled mallets, and played on a hard surface

• a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States

• Queer, strange (suggesting an Irish accent)

• (used to suggest emphasis such as "a lot of" or "very" (suggesting an Irish accent).)

• 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)