scalariform
adjective
sca·lar·i·form skə-ˈler-ə-ˌfȯrm 
skə-ˈla-rə-ˌfȯrm
: resembling a ladder especially in having transverse bars or markings like the rungs of a ladder
scalariform cells in plants
scalariformly adverb
Word History
Etymology
New Latin scalariformis, from Latin scalaris + -iformis -iform
First Known Use
1836, in the meaning defined above