tophus

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Shadow of a man holding large knife in his hand inside of some dark, spooky buiding

7 of History's Most Notorious Serial Killers

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Water Fluoridation: Just the Facts

Cathedrale St.Jean in Lyon, France has a 14th-century astronomical clock that shows religious feast days till the year 2019; Perpetual Calendar

Ten Days That Vanished: The Switch to the Gregorian Calendar

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7 of the World’s Deadliest Plants

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere

Why Do Some Cicadas Appear Only Every 17 Years?

tophus

medical condition

Also known as: tophi

Learn about this topic in these articles:

gout

In gout
…may cause knobby deformities (tophi) and may also occur in cartilage that is not associated with the joints, such as the rim of the ear.
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