singleton
Concise Oxford English Dictionary © 2008 Oxford University Press:
singleton/ˈsɪŋɡltən/
▶noun
- 1 a single person or thing of the kind under consideration.
■ a child or animal born singly, rather than one of a multiple birth.
■ (in card games, especially bridge) a card that is the only one of its suit in a hand.
- 2 informal a person who is not in a long-term relationship.
- 3 Mathematics & Logic a set which contains exactly one element.
'singleton' also found in these Oxford entries:
