A surname from Irish. / A town in Weakley County, Tennessee, United States. / An unincorporated community in Mineral County, West Virginia, United States.

plural of Gleason

A mathematical theorem, important for quantum logic, proving that the Born rule for the probability of obtaining specific results for a given measurement follows naturally from the structure formed by the lattice of events in a real or complex Hilbert space.

A score achieved in the Gleason grading system, used in evaluating the prognosis of men with prostate cancer.

plural of Gleason score

Of or relating to Henry A. Gleason (botanist) (1882–1975), American ecologist, botanist, and taxonomist, known for his endorsement of the individualistic or open community concept of ecological succession, and his opposition to Frederic Clements's concept of the climax state of an ecosystem.