'Sitter' definitions:

Definition of 'Sitter'

From: WordNet
noun
Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934) [syn: Sitter, Willem de Sitter]
noun
An organism (person or animal) that sits [ant: stander]
noun
A person engaged to care for children when the parents are not home [syn: babysitter, baby-sitter, sitter]
noun
A person who poses for a painter or sculptor [syn: artist's model, sitter]
noun
A domestic hen ready to brood [syn: brood hen, broody, broody hen, setting hen, sitter]

Definition of 'Sitter'

From: GCIDE
  • Sitter \Sit"ter\, n.
  • 1. One who sits; esp., one who sits for a portrait or a bust. [1913 Webster]
  • 2. A bird that sits or incubates. [1913 Webster]