Noun
English Wikipedia has an article on:ladderaneWikipedia
ladderane (plural ladderanes)
(organic chemistry) Any of a class of polycyclic hydrocarbons, consisting of repeating cyclobutane moieties, that resemble ladders
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
This process has been developed into an [n]ladderane synthesis by starting with the dihydro derivative 5 of Smith’s diene and working in tandem.