원자 번호 56번의 화학 원소로, 알칼리 토금속에 속하는 무르고 은백색인 반응성 금속.
The chemical element of atomic number 56, a soft silvery-white alkaline earth metal that is highly reactive.
예문:
"Barium is so reactive that it is never found in nature as a free element."
"The flame test for barium compounds typically produces a distinctive pale green color."
위장관의 X선 촬영 시 대조를 위해 사용하는 황산 바륨 현탁액.
A suspension of barium sulfate used as a contrast medium to allow X-ray examination of the digestive tract.
예문:
"The patient was required to drink a barium swallow to help visualize the esophagus."
"A barium enema is often used to detect abnormalities in the large intestine."