Sentence:  It is characterized by the presence of incompletely developed secondary lobules ; well defined , but haphazardly arranged , interlobular septa and a <WSD>thick</WSD> , remarkably vascular pleura ( fig. 9 ) . 
Meaning of the word marked with <WSD> tags:  not thin; of a specific thickness or of relatively great extent from one surface to the opposite usually in the smallest of the three solid dimensions