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arsenical

UK /ɑːˈsɛnɪkl̩/adjective, noun

arsenical is an adjective meaning “Of or pertaining to, or containing, arsenic” (English Wiktionary, September 2026). It is spelled A-R-S-E-N-I-C-A-L, and it appears about once in every 35 million words in written English (wordfreq, 2021 data).

What does arsenical mean?

adjective

  1. 1

    Of or pertaining to, or containing, arsenic.

noun

  1. 1

    Any drug or other substance containing arsenic.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce arsenical?

  • UK /ɑːˈsɛnɪkl̩/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Forms of arsenical

  • more arsenical comparative
  • most arsenical superlative
  • arsenicals plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is arsenical?

Arsenical appears about once in every 35 million words in written English, the 182,517th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Arsenical in Spanish, French, German and Portuguese

In the sense pertaining to or containing arsenic:

LanguageWords
Portuguesearsénico, arsênico

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.