Sentence:  It may be less than shocking that about 70 percent of the transactions made through rogue pharmacy websites advertised by Gusev&#39;s SpamIt and Vrublevsky&#39;s Rx-Promotion were for <WSD>male-enhancement</WSD> drugs like Viagra and Cialis. 
Meaning of the word marked with <WSD> tags:  a chemical means of inducing an erection of the penis