Singularity

n. quality of being singular, uniqueness; peculiarity, unique or individual quality

Singularity may refer to: In mathematics:Essential singularity, a singularity near which a function exhibits extreme behaviorIsolated singularity, a mathematical singularity that has no other singularities close to itMathematical singularity, a point at which a given mathematical object is not definedMovable singularity, a concept in singularity theoryRational singularity, a concept in singularity theoryRemovable singularity, a point at which a function is not defined but at which it can be so defined that it is continuous at the singularitySingular point of an algebraic variety, a point where an algebraic variety is not locally flatSingularity theory, Theory which deals with these concepts
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Noun
1. the quality of being one of a kind; "that singularity distinguished him from all his companions"
(synonym) uniqueness
(hypernym) individuality, individualism, individuation
2. strangeness by virtue of being remarkable or unusual
(hypernym) unfamiliarity, strangeness

(n.)
The quality or state of being singular; some character or quality of a thing by which it is distinguished from all, or from most, others; peculiarity.
  

(n.)
Possession of a particular or exclusive privilege, prerogative, or distinction.
  

(n.)
Celibacy.
  

(n.)
Anything singular, rare, or curious.
  

A point of infinite density which, when placed upon the spacetime continuum, produces an infinitely deep potential well. Singularities are theorised to be found in the centre of black holes. We cannot observe them, however, because they are surrounded by the black hole's event horizon.