shaped like a ladder
• (a.) Resembling a ladder in form or appearance; having transverse bars or markings like the rounds of a ladder; as, the scalariform cells and scalariform pits in some plants. • (a.) Like or pertaining to a scalaria.
ladder-like
Having a ladder-like pattern. ... (09 Oct 1997) ... 
ladder-like
Sca·lar'i·form adjective [ Latin scalare , scalaria , staircase, ladder + -form : confer French scalariforme .] 1. Resembling a ladder in form or appearance; having transverse bars or markings like the rounds of a ladder; as, the scalariform cells and s...