Sentence:  I have again and again intimated that I desire the hair to be arranged closely, modestly, plainly. Miss Temple, that girl's hair must be cut off entirely; I will send a barber to-morrow: and I see others who have far too much of the <WSD>excrescence</WSD>—that tall girl, tell her to turn round. 
Meaning of the word marked with <WSD> tags:  Something, usually abnormal, which grows out of something else.