Inadequacy or incompleteness.
An insufficiency, especially of something essential to health.
The codimension of a linear system in the corresponding complete linear system.
The amount by which the number of double points on a curve is short of the maximum for curves of the same degree.
An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment.
A person or group that does not show up.
To fail to show up for something.