noun. an oral dose of radioactive substance used in treatment and diagnosis of cancer.
noun. ['ˈkɑːkˌteɪl'] an appetizer served as a first course at a meal.
adjective. ['əˈtɑːmɪk'] (weapons) deriving destructive energy from the release of atomic energy.
adjective. ['əˈtɑːmɪk'] immeasurably small.