Noun

(en-noun)

A state of being away or withdrawn from a place or from companionship; the period of being away.

* (rfdate) (w) 2:12

Not as in my presence only, but now much more in my absence .

Failure to be present where one is expected, wanted, or needed; nonattendance; deficiency.

* (rfdate) - Kent

In the absence of conventional law.

Lack; deficiency; nonexistence.

Inattention to things present; abstraction (of mind).

* (rfdate), (Joseph Addison) (1672-1719)

Reflecting on the little absences and distractions of mankind.

* 1824-1829? , (w), (Imaginary Conversations)

To conquer that abstraction which is called absence .

(medical) Temporary loss or disruption of consciousness, with sudden onset and recovery, and common in epilepsy.

(fencing) Lack of contact between blades.

Noun

(uncountable) Inadequacy or incompleteness.

* {{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)

, chapter=17 citation , passage=The face which emerged was not reassuring. […]. He was not a mongol but there was a deficiency of a sort there, and it was not made more pretty by a latter-day hair cut which involved eccentrically long elf-locks and oiled black curls.}}

(countable) An insufficiency, especially of something essential to health.

* {{quote-magazine, date=2013-08-31, volume=408, issue=8851, magazine=(The Economist)

, title= Promotion and self-promotion , passage=One of academia’s deficiencies is that, though its lecture halls and graduate schools are replete with women, its higher echelons are not. Often, this is seen as a phenomenon specific to the sciences. … In fact, the disparity applies to the whole grove. Another report from 2006, by the American Association of University Professors, found the same ratio in the faculties of arts, humanities and social science, too.}}

(geometry) The amount by which the number of double points on a curve is short of the maximum for curves of the same degree.

(geometry) The codimension of a linear system in the corresponding complete linear system.