STD
noun
UK/ˌes.tiːˈdiː/
US/ˌes.tiːˈdiː/
Definitions of STD noun
disease
- Countable
An abbreviation for sexually transmitted disease.
The doctor recommended she get tested for STDs.
Practicing safe sex reduces the risk of contracting STDs.
Many STDs may not show symptoms in their early stages.
phone
- Uncountable
An abbreviation for subscriber trunk dialling, a system in the UK and Australia for making long-distance phone calls.
Subscribers can use STD to dial any number within the UK.
The STD system in Australia allows for direct long-distance calls.
The old STD system is being replaced by new telecommunication technologies.