What does anthrax mean?
Anthrax is a serious infectious disease caused by the rod-shaped bacterium Bacillus anthracis. It affects primarily grazing animals such as cattle, sheep, and goats, but can infect humans who come into contact with infected animals or contaminated animal products such as hides, wool, or meat. The disease takes three main forms in humans: cutaneous (through the skin), inhalational (through the lungs), and gastrointestinal. Its spores are extraordinarily resilient, capable of surviving in soil for decades, which makes anthrax both difficult to eradicate and historically attractive as a biological weapon. The word derives from the Greek 'anthrakis', meaning coal or charcoal, a reference to the dark, coal-black lesions characteristic of the cutaneous form. Today anthrax is largely controlled in developed countries through livestock vaccination, though occasional outbreaks still occur, and it remains a subject of significant concern in biodefense planning worldwide.
A serious bacterial disease of mammals, including humans, caused by Bacillus anthracis, characterized by skin ulcers, pneumonia, or septicemia depending on the route of infection.
"Veterinarians administered antibiotics to workers exposed to contaminated hides during the suspected anthrax infection."
Typically uncountable when referring to the disease as a concept; used countably only in rare technical contexts referring to individual cases or outbreaks.
The spores of Bacillus anthracis, particularly when discussed as a biological agent or contaminant.
"Decontamination teams were dispatched after anthrax spores were detected in the postal facility."
This sense usually appears with the word 'spores' as part of a compound phrase rather than as a standalone noun.
The plural 'anthraces' exists in formal medical literature but is extremely rare; the word is almost always treated as singular or uncountable.
"Multiple cases of anthraces were reported across three counties following the livestock exposure event."
The name 'anthrax' comes from the Greek word for coal, because the black sores it causes on the skin look like burnt charcoal.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of anthrax
The word anthrax comes from the Greek 'anthrakis' (ἄνθραξ), meaning 'coal' or 'charcoal', adopted into Latin before entering English in the late 14th century via Old French and medical Latin. The name refers to the black, coal-like eschars (scabs) that form on the skin in the cutaneous form of the disease. The same Greek root gives us anthracite (a hard variety of coal), reflecting the shared origin in the Greek word for burning material. The term was long applied to various skin conditions before the specific disease was identified as being caused by Bacillus anthracis, which Robert Koch established definitively in 1876.
How anthrax is actually used
Anthrax is used almost exclusively in medical, veterinary, and public-health contexts and carries strongly negative connotations. It is an uncountable noun when referring to the disease generally, though 'an anthrax outbreak' treats it attributively. The plural form is rare and appears only in technical literature referring to multiple cases or outbreaks.
Easily confused with anthrax
Anthracite is a hard, high-grade form of coal; anthrax is an infectious disease — both derive from the Greek word for coal but have entirely unrelated meanings.