bilevel

bi-lev·el

or bi·lev·el (bī′lĕv′əl)adj.1. Having or existing on two levels: a bi-level passenger coach; a bi-level marketing campaign.2. Divided vertically into two ground-floor levels: a bi-level home.n. A dwelling that is divided vertically into two ground-floor levels.

bilevel

(ˈbaɪˌlɛvəl) adj1. having two levels2. (Computer Science) computing (of an image) converted to show only two colours, black and white