say it: di-saw-ree-uhn-TAY-shuhn
disorientation is a noun meaning "a wild delusion (especially one induced by a hallucinogenic drug)". It carries 2 recorded senses.
confusion (usually transient) about where you are and how to proceed; uncertainty as to direction
“his disorientation was the result of inattention”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for disorientation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.