Definitions for "STIs"
Space-Time Intelligence System
Space Telescope Imaging Spectrograph - - Second Generation Imager/Spectrograph. STIS is used to obtain high resolution spectra of resolved objects. The special ability of STIS is to simultaneously obtain spectra from many different points along the target
Space Telescope Imaging Spectrograph. A special spectrograph found on the Hubble Space Telescope.
Sexually Transmitted Infections. These include: syphilis; gonorrhoea; public lice & scabies; trichomonas vaginalis; chlamydia; genital warts, thrush and bacterial vaginosis; genital herpes; HIV.
Sexually Transmissible Infections. Sometimes called STDs or Sexually Transmitted Diseases. A term for any infection which you can get by having unprotected or unsafe sexual contact with an infected person. For more information go to Be Safe or Need Help Now.
Sexually Transmitted Infections. Trade
An on-line search system of the National Science Foundation.