English version

STD

From Longman Dictionary of Contemporary English
Related topics: Illness & disability
STDSTD /ˌes tiː ˈdiː/ noun [countable, uncountable] medical  MI (sexually transmitted disease) a disease that one person passes to another through having sex, such as AIDS or herpes
From Longman Business DictionarySTDSTD noun [uncountable] subscriber trunk dialling; in Britain, the name for the former telephone system that allowed people to connect their own long-distance calls by using an STD code (=a special number for the area you are calling). Officially, STD codes are now called area codes although many people still use the old namestd.std. written abbreviation for standard
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.