What does febrific mean?
Febrific is a rare English adjective with two closely related meanings: causing or tending to cause fever, and, more loosely, being feverish or intensely heated. Its first sense is the most literal and useful in medical or literary descriptions of substances, conditions, or agents associated with fever. The second can describe a person, sensation, atmosphere, or imaginative state, though it normally suggests a sharper, more figurative heat than ordinary warmth. Because the word is uncommon, clear context matters: a febrific condition is associated with producing fever, while febrile more commonly describes someone who has a fever. Febrific appears chiefly in formal, literary, medical, or archaic writing rather than everyday speech. It belongs to the same Latin family as fever, febrile, and febrifuge, but unlike the everyday word fever, it focuses on producing or conveying a feverish quality. Its rarity makes it especially effective in precise or deliberately elevated prose.
adjectiveCausing or tending to produce fever; also, feverish or marked by fever.
- Causing or tending to produce fever.
- Feverish or marked by fever.
"The physician identified the febrific mixture as the likely cause of the patient's worsening condition."
"The physician warned that the febrific mixture had made the patient's condition worse."
"Her febrific dream left her flushed, restless, and trembling."
Febrific names what makes a fever—not merely the person who has one.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does febrific come from?
The English adjective comes through Latin febrificus, meaning “fever-producing.” That form is associated with febris, the Latin word for fever, together with a productive element related to facere, “to make.” Related English terms such as febrile and febrifuge preserve the same Latin source, although febrific itself remains uncommon outside formal and literary use.
Related word forms
How febrific is actually used
This is a rare, formal or literary word, occurring chiefly in medical, elevated, or archaic prose. It should not be used as a substitute for the more familiar febrile without regard to the distinction between producing fever and having fever.
Easily confused with febrific
Febrific means producing or tending to produce fever, whereas febrile more commonly means having or relating to fever.
Febrific describes something that causes fever, while a febrifuge is a substance used to reduce or ward off fever.