(n.) A piece of iron imbedded in the sand of a mold to keep the sand in place.
Example Sentences:
(1) This study analyzes so-called hopeless gaggers, i.e., patients in whom dental treatment and wearing of a prosthesis produced a retching or vomiting reaction, in order to investigate the sources and properties of this pathologic reaction.
(2) Subjects were from three fear subtypes: needle phobic (N = 15), gagger (N = 11), and non-specific dental fear (N = 85).