I. noun
1.
a. : the name by which an article is called among traders
blue vitriol, a common trade name for copper sulfate
b. : an invented or arbitrarily adopted name that is given by a manufacturer or merchant to an article or service to distinguish it as one produced or sold by him or is generally so used by purchasers and that may be used and protected as a trademark
2. : the name or style under which a concern does business that will when it by association identifies a particular manufacturer or merchant be protected at common law against the use by others of a similar name which is calculated to deceive — compare unfair competition
II. transitive verb
: to designate with a trade name