main menu   -   articles   -   prostate   -   stories   -   sexuality   -   resources   -   glossary   -   search     From Phoenix5's Prostate Cancer Glossary testicles Synonyms: testes, gonads Definition: (TESS-tih-kuls) Slang:balls. Male reproductive glands located inside the scrotum, behind and below the penis, which produce sperm and are the primary source of testosterone. Medically called testes (TESS-teez). (Singular is testis.) make another selection #s   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  WXYZ main menu   -   articles   -   prostate   -   stories   -   sexuality   -   resources   -   glossary   -   search The Glossary Booklet   -   The Personal Edition Definitions are provided for education only and are not medical advice. Created exclusively for Phoenix5. © 2002 Phoenix5.