Pronunciation: 'Or-E-&n-"tAt·ed
Function: verb

Thought by many to be a misspelling of the common word ‘oriented’, orientated is indeed a word of it’s own, and a worthy word at that. According to Merriam-Webster’s online dictionary (http://m-w.com) it dates from 1849 and has two usages:

Transitive sense : Same as oriented.
Intransitive sense : Faced or turned to the east.

Side note: The revelation of the veracity of this word resulted in wharfinger eating a (supposed) bug.