n.
1.French chemist (born in Poland) who won two Nobel Prizes
2.French physicist
3.a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second
Idiom of the Day
familiar with (someone or something)
to have knowledge of someone or something
My friend is familiar with the streets in our city.