Convergence insufficiency
convergence insufficiency n.
The condition in which an esophoria or esotropia is greater for far vision than for near vision.
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- Convergence zone
noun 1. (geology) a zone where tectonic plates collide, typified by earthquakes, mountain formation, and volcanic activity
- 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 […]
- Convergent
[kuh n-vur-juh nt] /kənˈvɜr dʒənt/ adjective 1. characterized by ; tending to come together; merging. /kənˈvɜːdʒənt/ adjective 1. (of two or more lines, paths, etc) moving towards or meeting at some common point 2. (of forces, ideas, etc) tending towards the same result; merging 3. (maths) (of an infinite series) having a finite limit
- Convergent-boundary
noun, Geology. 1. a major geologic discontinuity or suture marking the juncture of lithospheric plates that have been joined by plate tectonics.
- Convergent-evolution
noun 1. the appearance of apparently similar structures in organisms of different lines of descent. noun See divergent evolution convergent evolution n. See convergence. The development through evolution of similar features by organisms with distinctly different ancestors. A common example of this is the evolution of wings in insects and birds.