Sentence:  Felix Kopstein states that `` when the snake reaches its maturity it has already reached about its maximal length '' , but goes on to cite the reticulate python as an exception , with maximum <WSD>length</WSD> approximately three times that at maturity . 
Meaning of the word marked with <WSD> tags:  the linear extent in space from one end to the other; the longest dimension of something that is fixed in place