Meaning

• An area of darkness; a place or region with no light.

• Something which is opaque rather than translucent.

Meaning

• To make, render (more) opaque.

Meaning

• 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.