a sexually transmitted infection (also known as an STD) is spread through sexual contact, either through bodily fluids, blood or skin to skin contact. Some are treatable and others are not.
Infection spread through sexual intercourse or intimate sexual contact.
Disease resulting from bacteria or viruses and often acquired through sexual contact. Some STIs can also be acquired in other ways (i.e. blood transfusions, intravenous drug use, mother-to-child transmission0. The term 'STI' is slowly replacing 'STD' (sexually transmitted disease) in order to include HIV infection.
an infection or set of diseases that can be contracted due to certain unprotected sexual activity.
An infection that can be transferred from one person to another through sexual contact. In this context, sexual contact is more than just sexual intercourse (vaginal and anal) and also includes kissing, oral-genital contact, and the use of sexual "toys," such as vibrators. See the entire definition of Sexually transmitted infection
Also known as sexually transmitted condition, and previously as sexually transmitted disease (STD), venereal disease (VD), and social disease. Infection/condition that is almost exclusively transmitted through sexual activity.