Sentence:  It may be helpful at this point to anticipate part of the argument in Chapter 1, “<WSD>Hymenologies</WSD>: the multiple signs of virginity.” Today, the primary physiological “sign” of virginity in women is considered to be the “unbroken” hymen; [...] 
Meaning of the word marked with <WSD> tags:  A treatise on the topic of the hymen.