std
1 of 3abbreviation (1)
standard
STD
2 of 3noun
ˌes-(ˌ)tē-ˈdē 
: any of various diseases or infections that can be transmitted by direct sexual contact including some (such as syphilis, gonorrhea, chlamydia, and genital herpes) chiefly spread by sexual means and others (such as hepatitis B and AIDS) often contracted by nonsexual means
STD
3 of 3abbreviation (2)
doctor of sacred theology
Example Sentences
Noun a discussion of AIDS and other STDs
Word History
Etymology
Noun
sexually transmitted disease
Abbreviation (2)
New Latin sacrae theologiae doctor
First Known Use
Noun
1974, in the meaning defined above
Medical Definition
STD
noun
ˌes-ˌtē-ˈdē
: sexually transmitted disease