singularity
/ˌsɪŋɡjəˈlæɹətɪ/ noun C1- The state of being singular, distinct, peculiar, uncommon or unusual.
- An unusual action or behaviour.
- A point where all parallel lines meet.
- A point where a measured variable reaches unmeasurable or infinite value.
- The value or range of values of a function for which a derivative does not exist.
- Celibacy, singleness (as contrasted with marriage).
Plural singularities
From the library
“Do you know, my dear Villefort,” cried the Comte de Salvieux, “that is exactly what I myself said the other day at the Tuileries, when questioned by his majesty’s principal chamberlain touching the singularity of an alliance between the son of a Girondin and the daughter of an officer of the Duc de Condé; and I assure you he seemed fully to comprehend that this mode of reconciling political differences was based upon sound and excellent principles.
The singularity of this step, and above all its formality, had not a little surprised the banker, who had immediately obeyed his daughter by repairing first to the drawing-room.
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