Pronunciation: (as'tu-risk), [key]
1. a small starlike symbol (*), used in writing and printing as a reference mark or to indicate omission, doubtful matter, etc.
2. Ling.the figure of a star (*) used to mark utterance that would be considered ungrammatical or otherwise unacceptable by native speakers of a language, as in * I enjoy to ski.
3. Historical Ling. the figure of a star (*) used to mark a hypothetical or reconstructed form that is not attested in a text or inscription.
4. something in the shape of a star or asterisk.
to mark with an asterisk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.