arsenical
adjective
ar·sen·i·cal är-ˈse-ni-kəl 
: of, relating to, containing, or caused by arsenic
arsenical poisoning
arsenical noun
Example Sentences
Recent Examples on the Web Although others suspected arsenical wallpaper, Morris didn’t believe—or claimed not to believe—that arsenic was bad for you. 
Kat Eschner, Smithsonian, 3 Apr. 2017 The Industrial Revolution gave rise to a prolific amount of smelting and burning of coal, which released arsenical compounds that then made their way into a variety of products. Brigit Katz, Smithsonian, 13 Mar. 2017 Although others suspected arsenical wallpaper, Morris didn’t believe—or claimed not to believe—that arsenic was bad for you. Kat Eschner, Smithsonian, 3 Apr. 2017
Kat Eschner, Smithsonian, 3 Apr. 2017 The Industrial Revolution gave rise to a prolific amount of smelting and burning of coal, which released arsenical compounds that then made their way into a variety of products. Brigit Katz, Smithsonian, 13 Mar. 2017 Although others suspected arsenical wallpaper, Morris didn’t believe—or claimed not to believe—that arsenic was bad for you. Kat Eschner, Smithsonian, 3 Apr. 2017 Word History
Etymology
borrowed from New Latin arsenicālis, from Latin arsenicon arsenic entry 1 + -ālis -al entry 1
First Known Use
1605, in the meaning defined above
Medical Definition
arsenical 1 of 2
adjective
ar·sen·i·cal är-ˈsen-i-kəl
: of, relating to, containing, or caused by arsenic
an arsenical drug
arsenical poisoning
arsenical
2 of 2noun
: a compound or preparation containing arsenic