Difference between revisions of "Tusk"
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== Description == | == Description == | ||
| − | A large protruding tooth found in elephants, walruses, narwhals, and boars. Tusks, like teeth, have a soft center surrounded by hard dentin primarily composed of calcium hydroxyapatite with smaller amounts of calcium carbonate, calcium fluoride, magnesium phosphate, and ossein. A hard durable enamel forms a smooth outer surface. See also [ | + | A large protruding tooth found in elephants, walruses, narwhals, and boars. Tusks, like teeth, have a soft center surrounded by hard dentin primarily composed of calcium hydroxyapatite with smaller amounts of calcium carbonate, calcium fluoride, magnesium phosphate, and ossein. A hard durable enamel forms a smooth outer surface. See also [[elephant%20tusk|elephant tusk]], [[mammoth%20tusk|mammoth tusk]], [[narwhal%20tusk|narwhal tusk]], [[walrus%20tusk|walrus tusk]], and [[wild%20boar%20tusk|wild boar tusk]]. |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 12:43, 10 May 2016
Description
A large protruding tooth found in elephants, walruses, narwhals, and boars. Tusks, like teeth, have a soft center surrounded by hard dentin primarily composed of calcium hydroxyapatite with smaller amounts of calcium carbonate, calcium fluoride, magnesium phosphate, and ossein. A hard durable enamel forms a smooth outer surface. See also Elephant tusk, Mammoth tusk, Narwhal tusk, Walrus tusk, and Wild boar tusk.