1) Dorsoventral 
having structurally different upper and lower surfaces, e.g. some leaves.
flattened with a separate dorsal and ventral side ie most leaves and leaf blades
having differentiated opposite faces or surfaces
• (a.) See Dorsoventral. • (a.) Having distinct upper and lower surfaces, as most common leaves. The leaves of the iris are not dorsiventral.
Having structurally different upper and lower surfaces. ... (09 Oct 1997) ... 
Dor`si·ven'tral adjective [ Dorsum + ventral .] 1. (Biol.) Having distinct upper and lower surfaces, as most common leaves. The leaves of the iris are not dorsiventral . 2. (Anat.) See Dorsoventral . 
flattened with a separate dorsal and ventral side ie most leaves and leaf blades
having distinct dorsal and ventral sides, as most foliage leaves. · dorsoventral.