Sentence:  “You have probably never seen anything like this before, Mr. Toler. It is <WSD>baleen</WSD>, or if you prefer it, whalebone#Noun 
Meaning of the word marked with <WSD> tags:  The bony material that makes up the plates in the mouth of the baleen whale, "Mysticeti", which it uses to trap its food; formerly used in corsetry