singleton

plural singletons

1. playing cardsA playing card that is the only one of its suit in a hand, especially at bridge.
2. playing cardsA hand containing only one card of a certain suit.
3. A single object, especially one of a group.
4. computingA class that may not be instantiated more than once, i.e. that implements the singleton design pattern.
5. mathematicsA set with exactly one element.
6. A child or animal that is born singly, not as a twin or other multiple birth.

   singleton preterm birth

   1 more example

   Viable non-malformed singleton pregnancies were selected for cerebellar measurements; transcerebellar diameter, (TCD), left and right cerebellar diameters (LCD, RCD).

   2015 October 23, “Periconception Maternal Folate Status and Human Embryonic Cerebellum Growth Trajectories: The Rotterdam Predict Study”, in PLOS ONE, →DOI

7. A person without a romantic partner.

   Millennials and Gen Zedders’ approach to romance can teach later-life singletons a thing or two about new relationships, according to dating agent Anna Williamson.

   2022 August 14, “Lessons in love”, in The Sunday People

   1 more example

   The time draws near when pink and red creep insidiously into the periphery, jewelry retailers go into overdrive and drugstore aisles burst with cherubs for the one holiday of the year that separates the singletons from the significant-othered.

   2012 February 11, Katie Gile, “I hate/love Valentine’s Day”, in Spinnaker, Jacksonville, Fla.: University of North Florida, archived from the original on 18 Sep 2020

8. A person without a dissociative identity.

   Synonyms: singlet

9. human sciencesA single consonant, as opposed to a geminated consonant.

   singleton sonorants

10. backgammonSynonym of blot.

    Synonyms: blot

11. educationA class offered only once within a school year.

comparative more singleton · superlative most singleton

1. educationOf a class offered only once within a school year.

   a singleton class

plural Singletons

1. A placename:
   1. countableuncountableA village and civil parish in Fylde borough, Lancashire, England (OS grid ref SD3838).
   2. countableuncountableA suburb in Great Chart with Singleton parish, Ashford borough, Kent, England (OS grid ref TQ9841).
   3. countableuncountableA village and civil parish in Chichester district, West Sussex, England (OS grid ref SU8713).
   4. countableuncountableA town and local government area (Singleton Council) north-west of Newcastle, New South Wales, Australia.
   5. countableuncountableAn outer southern suburb of Perth, Western Australia.
2. countableuncountableA habitational surname from Old English.

   Graphs with diameter d and girth 2d#43;1 are known as Moore graphs. They were introduced by Hoffman and Singleton in a paper that can be viewed as one of the prime sources of algebraic graph theory.

   2013, Chris Godsil, Gordon F. Royle, Algebraic Graph Theory, Springer, page 77

   1 more example

   […] she busied herself in the front room, rustling about in Anne Kellaway’s box of buttony materials filled with rings of various sizes, chips of sheep horn for the Singletons, a ball of flax for shaping round buttons, bits of linen for covering them, both sharp and blunt needles, and several different colors and thicknesses of thread.

   2007, Tracy Chevalier, Burning Bright, New York: Dutton, Part 4, Chapter 4, p. 126