sil·den·a·fil 
(sĭl-dĕnə-fĭl)
(sĭl-dĕnə-fĭl)n.
A drug, C22H30N6O4S, used to treat sexual dysfunction by increasing the level of cyclic GMP, which increases blood flow to erectile tissues.
[Perhaps alteration of S(ULFON)YL + (PYRIMI)DINE + PH(EN)YL.]
- commemoration
- commemorative
- commemoratively
- commemorator
- commemoratory
- commence
- commencement
- commencer
- commend
- commendable
- commendably
- commendation
- commendatory
- commensal
- commensalism
- commensally
- commensurability
- commensurable
- commensurably
- commensurate
- commensurately
- commensuration
- comment
- commentarial
- commentary