arsenalis

Arsenalis is a Latin adjective meaning "of arsenic" or "arsenical." It derives from arsenicum (arsenic) and ultimately from the Greek arsenikon. In Latin scientific and medical literature, arsenalis is used to form descriptors related to arsenic content or toxicity. The form appears in conjunction with nouns indicating substances, preparations, or natural materials associated with arsenic.

Historically, arsenalis appeared in medieval and early modern Latin texts on chemistry, pharmacology, and mineralogy to indicate arsenic-containing materials or preparations. In these contexts the term functioned as a descriptive label rather than a formal chemical name. The exact composition of arsenical preparations varied widely, and the usage reflects evolving understandings of arsenic chemistry.

In taxonomy and nomenclature, arsenalis has occasionally appeared as a specific epithet or descriptive element in Latinized names, often implying a connection to arsenic toxicity or arsenic-rich character. Such usage is rare and not governed by modern codes in a consistent way.

Today, arsenalis is seldom used in modern scientific English. Contemporary terminology prefers "arsenical" or "arsenic-containing" to describe substances that include arsenic. The adjective survives primarily as a historical linguistic form in older texts and as a word formed in compounds that refer to arsenic in Latin.