What is the definition or description of: hairy tongue?

Stained papillae: Black, hairy tongue is a temporary, harmless and painless oral condition that gives your tongue a dark, furry appearance. The distinct look of black, hairy tongue usually results from an overgrowth of bacteria in the mouth.

Hairy tongue: The term hairy tonque refers to the fuzzy growth on the top of the tongue. The tiny bumps that contain the taste buds sometimes overgrow appearing almost fiberous or hairlike. This can be caused by many factors, like diet, habits, medication, etc. Often the fuzzy texture will hold stain making it look like dark hair. Smoking is the most common for this affliction.

Peeling of tongue: Your tongue has lots of tiny projections called papillae. When there is a peeling of this tissue you get what is called hairy tongue.

Overgrown pumps.: In some conditions the pumps that has the taste buds on the tongue surface gets elongated (normally it wears down from normal chewing movements) trapping stains from foods and tobacco usage turning it to dark yellow , brown, or even black, it's also called black hairy tongue. Brushing the tongue with brush or tongue scraper can help.

Fungus: Black or brown coloration w/ elongated papillae on your tongue. This is caused by fungi, filamentous bacteria. It usually occurs in people w/ a suppressed immune system.