(law) Actual knowledge of copyright infringement, which may mean that an online service provider bears more liability for its users' actions than if it had no such knowledge.

(slang, vulgar) An anus inflamed by the passage of spicy foods.

Inescapably allured by something harmful.

(geology) A structure left by a type of soft-sediment deformation in which sediment saturated with water flowed upward due to forces put on it from above.

(automotive) A small butterfly valve fitted to the intake manifold just before the cylinder head intake ports of many modern automotive diesel engines, and around which air can pass even when it is closed.

Flame whose maximal temperature is below about 400°C (752°F), releasing very little heat, light, and carbon dioxide.

Cyphoma gibbosum, a small colourful sea snail. / Used other than figuratively or idiomatically: see flamingo, tongue.

plural of flamingo tongue

A pet door.

A doggie door.