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The quality or property of being '''tenacious'''.
*1. Cohesiveness, toughness; viscosity, clamminess (of a liquid); also, adhesive [[quality]], stickiness.
*2. The quality of retaining what is held, [[physically]] or [[mentally]]; firmness of hold or attachment; firmness of [[purpose]], [[persistence]], obstinacy.
:b. Retentiveness (of [[memory]]).
*3. Tendency to keep fast hold of [[money]]; miserliness, niggardliness, parsimony. Obs.
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'''Tenacity''' is the customary [[measure]] of strength of a fiber or yarn. In the U.S. it is usually defined as the [[ultimate]] (breaking) strength of the fiber (in gram-force units) divided by the [http://en.wikipedia.org/wiki/Units_of_textile_measurement#Denier denier].
Because denier is a measure of the linear density, the tenacity works out to be not a measure of force per unit area, but rather a quasi-[[dimension]]less measure [[analogous]] to [http://en.wikipedia.org/wiki/Specific_strength specific strength].
[[Category: General Reference]]