1) Arranged in strata 2) Occurring as a bed or beds 1) Layered 
layered; forming a layer
• (a.) Having the form of strata.
(strat´ĭ-form) having a layered structure.
Having extensive horizontal development, as opposed to the more vertical development characteristic of convection. Stratiform clouds cover large areas but show relatively little vertical development.
Strat'i·form adjective Having the form of strata. 
stratiform 1. Composed of layers, or with a layered appearance or arrangement. 2. Forming or formed as a layer. 3. Like or having the form of a stratus cloud. 4. In meteorology, of a cloud, having a predominantly horizontal development; the opposite of cumuliform.
occurring as a bed or beds; arranged in strata. · noting arrangement in thin layers, as in bone. · (of a cloud) having predominantly horizontal development. Cf.