Convergency

[kuh n-vur-juh ns] /kənˈvɜr dʒəns/

noun
1.
an act or instance of converging.
2.
a convergent state or quality.
3.
the degree or point at which lines, objects, etc., converge.
4.
Ophthalmology. a coordinated turning of the eyes to bear upon a near point.
5.
Physics.

6.
Meteorology. a net flow of air into a given region.
Compare (def 2).
7.
Biology. similarity of form or structure caused by environment rather than heredity.
/kənˈvɜːdʒəns/
noun
1.
Also called convergency. the act, degree, or a point of converging
2.
concurrence of opinions, results, etc
3.
(maths) the property or manner of approaching a finite limit, esp of an infinite series: conditional convergence
4.
the combining of different forms of electronic technology, such as data processing and word processing converging into information processing
5.
Also called convergent evolution. the evolutionary development of a superficial resemblance between unrelated animals that occupy a similar environment, as in the evolution of wings in birds and bats
6.
(meteorol) an accumulation of air in a region that has a greater inflow than outflow of air, often giving rise to vertical air currents See also Intertropical Convergence Zone
7.
the turning of the eyes inwards in order to fixate an object nearer than that previously being fixated Compare divergence (sense 6)
n.

1713, from converge + -ence. Related: Convergent. Convergent evolution was in use among biologists by 1890.

convergence con·ver·gence (kən-vûr’jəns)
n.

con·verge’ v.
con·ver’gent adj.
convergence
(kən-vûr’jəns)