Intensive Outpatient Treatment (also known as IOP for Intensive Outpatient Program) is a primary treatment program recommended in some circumstances by a clinical and medical assessment. IOP may be recommended for those who do not need medically-supervised detox.
The genitive is the case (or function) of an inflected form of a noun or pronoun showing ownership, measurement, association, or source. Adjective: genitival. The suffix -'s on nouns is a marker of genitive case in English. Genitive case can also be indicated by an of phrase after a noun.
genitive, genitive case, possessive case. oblique, oblique case - any grammatical case other than the nominative. attributive genitive, attributive genitive case - a word in the genitive case that is used as an attributive adjective; an example of the attributive genetive is `John's' in `John's mother'. genitive.