rift valley fever

rift val·ley fe·ver

R r

Definition of rift valley fever words

noun rift valley fever a highly infectious viral disease of humans and animals, transmitted by mosquitoes and other insects, occurring in Africa and characterized in humans by headache, fever, eye discomfort, and muscle aches, progressing in some cases to encephalitis, blindness, or internal bleeding. 1

before 1930

One of the 10% newest English words

First recorded in 1930-35

noun

adjective

verb

adverb

pronoun

preposition

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determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 1% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

This diagram is provided by Google Ngram Viewer

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