Is Information Architecture just a 'poncy' term for a sitemap?

I've been told by a director of a new media company, that Information Architecture is 'just a poncy term for a sitemap'. Do you agree/disagree, and why?

no they have similarities but they are different in many ways.
Information architecture (IA) is the art of expressing a model or concept of information used in activities that require explicit details of complex systems. Among these activities are library systems, web development, user interactions, database development, programming, technical writing, enterprise architecture, and critical system software design. Information architecture has somewhat different meanings in these different branches of IS or IT architecture. Most definitions have common qualities: a structural design of shared environments, methods of organizing and labeling websites, intranets, and online communities, and ways of bringing the principles of design and architecture to the digital landscape.
wile site map is ) is a representation of the architecture of a web site. [1] It can be either a document in any form used as a planning tool for web design, or a web page that lists the pages on a web site, typically organized in hierarchical fashion. This helps visitors and search engine bots find pages on the site.

No - although it can be for people that don't know what they're talking about.
A sitemap is a sitemap.
IA is the art of constructing content / data sources