abbr. 1 standard 2 standard deviation
STD may refer to:
Usage examples of "std".
Our sexual culture is not only rich with love and lust, but also filled with broken condoms, STDs, infertility, and erectile dysfunction.
This coats the vaginal area with both spermicide and a lubricant, which protect against STDs and conception.
It was the point of triage for all manner of illnesses that rolled down the mountainside to their doorstep: broken bones, pulmonary and cerebral edema, frostbite, heart conditions, dysentery, snow blindness, and all sorts of infections, including STDs.