Rabies is a deadly viral disease passed on by an animal bite. Once symptoms appear it is almost always fatal.
It attacks the nervous system, which is where the old name hydrophobia comes from, since sufferers cannot swallow water. Vaccination after a bite works if given quickly, which is why any bite abroad is treated as urgent. Britain has been free of it in land animals for a century, and quarantine rules for pets existed almost entirely because of it. The adjective is rabid, which also means fanatical.
1nounrabiesA fatal viral disease of the nervous system spread by animal bites.
“He needed a course of injections against rabies.”
Latin
rabiēs — rage, madness, fury
English, today
rabies
Latin rabiēs (“rage, madness, fury”). a doublet of rage.
Etymology from Wiktionary, CC BY-SA