Situated on the right side of a shield or coat of arms.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (adjective) (adj.) (adjective)
Right; opposite to left; as, the dexter hand.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (adjective) (adj.) (adjective)
In her., the right side of a shield or coat of arms.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (adjective) (adj.) (adjective)
On the right- hand side: right.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (adjective) (adj.) (adjective)
On the right- hand; right.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (adjective) (adj.) (adjective)

Usage examples:

Well now, somehow or other, our good luck got to the ears of George Dexter and his men, who have been at work for some time past upon old Johnson's diggings about fourteen miles up on the Sokee river.
- Guy Rivers: A Tale of Georgia by William Gilmore Simms
They- they have to be born to that, Dexter
- Then I'll Come Back to You by Larry Evans
Cotton Mather survived his own era, his congenial atmosphere, and, whether he was conscious of it or not, was indeed, as Dexter called him, a literary dodo, an isolated relic of early fantastic methods of composition.
- Customs and Fashions in Old New England by Alice Morse Earle