'leatherneck' definitions:

Definition of 'leatherneck'

From: WordNet
noun
A member of the United States Marine Corps [syn: Marine, devil dog, leatherneck, shipboard soldier]

Definition of 'leatherneck'

From: GCIDE
  • leatherneck \leath"er*neck`\, n.
  • 1. (Zool.) The sordid friar bird of Australia (Tropidorhynchus sordidus). [1913 Webster]
  • 2. [from the leather collar that was once part of their uniform.] A member of the United States Marine Corps; a United States Marine. [slang] [PJC]

Synonyms of 'leatherneck'

From: Moby Thesaurus