English version

Salk, Jonas

From Longman Dictionary of Contemporary EnglishSalk, JonasJonas SalkSalk, Jo‧nas /sɔːk, sɔːlk, ˈdʒəʊnəs/  (1914–95) a US scientist who produced the first successful vaccine (=a substance that is put into a person's body to protect them from a disease) against polio (=a serious disease that damages muscles permanently)
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.