Definify.com
Webster 1913 Edition
Tenacity
1.
The quality or state of being tenacious;
as,
. tenacity
, or retentiveness, of memory; tenacity
, or persistency, of purpose2.
That quality of bodies which keeps them from parting without considerable force; cohesiveness; the effect of attraction; – as distinguished from brittleness, fragility, mobility, etc.
3.
That quality of bodies which makes them adhere to other bodies; adhesiveness; viscosity.
Holland.
4.
(Physics)
The greatest longitudinal stress a substance can bear without tearing asunder, – usually expressed with reference to a unit area of the cross section of the substance, as the number of pounds per square inch, or kilograms per square centimeter, necessary to produce rupture.
Webster 1828 Edition
Tenacity
TENAC'ITY
,Noun.
1.
Adhesiveness; that quality of bodies which makes them stick or adhere to others; glutinousness; stickiness; as the tenacity of oils, of glue, of tar, of starch and the like.2.
That quality of bodies which keeps them from parting; without considerable force; cohesiveness; the effect of attraction; opposed to brittleness or fragility.