barium C1 Topic:Science & Research US /ˈbɛriːəm/ UK /ˈbɛəɹɪəm/ See IPA manual Freq #40451 Meanings 1 noun a soft silvery metallic element of the alkali earth group 2 noun The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. 3 noun A single atom of this element. 4 noun Barium sulphate suspension. Thesaurus Synonyms 2 noun · the chemical element... barytum Word family Derived forms barianbariferousbaritebaziritedibariumhexabariumorganobariumradiobariumtetrabariumtribarium Related forms baricbarotebarytabarytesgillespitewitheriteybco Appears in Phrases (1) See all barium sulfate a white, insoluble barium compound that blocks the passage of X-rays Noun + noun Etymology Coined by British chemist Humphry Davy in 1808, from baryta + -ium. Topics Science & Research External links Google Images Cambridge Dictionary Wiktionary # barium **Type:** Word **Level:** C1 **Part of speech:** noun **IPA (US):** /ˈbɛriːəm/ **IPA (UK):** /ˈbɛəɹɪəm/ **Frequency rank:** 40451 ## Meanings 1. a soft silvery metallic element of the alkali earth group 2. The chemical element (symbol Ba) with an atomic number of 56. It is a soft, reactive, silvery alkaline earth metal. 3. A single atom of this element. 4. Barium sulphate suspension. ## Derived Forms - barian - bariferous - barite - bazirite - dibarium - hexabarium - organobarium - radiobarium - tetrabarium - tribarium ## Related Forms - baric - barote - baryta - barytes - gillespite - witherite - ybco ## Etymology Coined by British chemist Humphry Davy in 1808, from baryta + -ium. ## Topics - Science & Research markdown