simile

n. instance in which two dissimilar items are compared using the words "like" or "as"

SIMILE is a research project focused on developing tools to increase the interoperability of disparate digital collections. As digital library collections proliferate and their contents expand, they come under increasing pressure to provide for interoperability across collections. The benefits for scholars of being able to seamlessly search across collections maintained by the local library, other digital libraries and licensed digital collections like JSTOR and ARTstor are compelling; networked libraries need to be interoperable. Digital libraries are unable to afford to maintain their own, collection-specific content descriptions. In any case, those descriptions do not integrate well with traditional library catalogues. The difficulties of retrieving information from thousands of digital libraries mean that much available information is effectively rendered invisible to individuals searching with mainstream library-based search systems. Researchers urgently need tools which can process a wide variety of types and sources of metadata and expose them to search. Such tools must operate across different communities with different schemes, vocabularies, ontologies and metadata to provide research services to their users. Project SIMILE was started to meet the challenge of developing such tools.
See more at Wikipedia.org...

A simile is a comparison of two unlike things, typically marked by use of "like", "as", "than", or "resembles". Common examples are "the fog was thick like pea soup", "she was as quick as a whip", "madder than a bull", etc.
See more at Wikipedia.org...

adj. similar, analogue, such, suchlike, akin, alike, like

n. fellow, fellow man; fellow creatures, kindred beings

n. simile, similitude

(n.)
A word or phrase by which anything is likened, in one or more of its aspects, to something else; a similitude; a poetical or imaginative comparison.