Sentence:  &#91;[https://books.google.com/books?id=oBgNPOk2kw8C&pg=PA229 page 229]&#93; For those of you who don't recognize the term, <WSD>"dunsel</WSD>" was a term first used in "w:Star Trek: The Original Series 
Meaning of the word marked with <WSD> tags:  Something (especially part of a vessel) that is useless, or superfluous or unnecessary.