Definition of asbestos
: any of several minerals (as chrysotile) that readily separate into long flexible fibers, that cause asbestosis and have been implicated as causes of certain cancers, and that have been used especially formerly as fireproof insulating materials
Did You Know?
A grayish mineral that separates readily into long, flexible fibers, asbestos was used in the past to make brake linings, insulation, roofing shingles, floor and ceiling tiles, cement pipes, and other building materials. Asbestos fabrics were used for safety apparel and theater curtains. In the 1970s, it was found that prolonged inhalation of the tiny asbestos fibers can cause asbestosis, lung cancer, and other serious lung diseases. In 1989, the US Government instituted a gradual ban on the manufacture, use, and export of most products made with asbestos.
Origin and Etymology of asbestos
Middle English albeston mineral supposed to be inextinguishable when set on fire, probably from Middle French abeston, from Medieval Latin asbeston, alteration of Latin asbestos, from Greek, unslaked lime, from asbestos inextinguishable, from a- + sbennynai to quench
First Known Use: 1607
ASBESTOS Defined for English Language Learners
Definition of asbestos for English Language Learners
: a soft gray mineral that does not burn, that was used especially as a building material in the past, and that can cause serious diseases of the lungs when people breathe its dust
ASBESTOS Defined for Kids
Definition of asbestos for Students
: a grayish mineral that separates easily into long flexible fibers and has been used especially in the past in making fireproof materials
Medical Definition of asbestos
: any of several minerals that readily separate into long flexible fibers, that cause asbestosis and have been implicated as causes of certain cancers, and that have been used especially formerly as fireproof insulating materials
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