noun, U.S. Government.
a high-level rank, Grade 16, 17, or 18, in the federal civil service.
a government employee having such a rank.
of, relating to, or characteristic of such a rank or employee.
[soo-per-gran-yuh-ley-shuh n] /ˌsu pərˌgræn yəˈleɪ ʃən/ noun, Astronomy. 1. one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
noun 1. an informer whose information implicates a large number of people in terrorist activities or other major crimes
[soo-per-grav-i-tee] /ˌsu pərˈgræv ɪ ti/ noun, Physics. 1. See under supersymmetry. supersymmetry [soo-per-sim-i-tree] /ˈsu pərˈsɪm ɪ tri/ noun, Physics. 1. a hypothetical symmetry among groups of particles containing fermions and bosons, especially in theories of gravity (supergravity) that unify electromagnetism, the weak force, and the strong force with gravity into a single unified force. supergravity […]
noun 1. any collection or assemblage of persons or things; cluster; aggregation: a group of protesters; a remarkable group of paintings. 2. a number of persons or things ranged or considered together as being related in some way. 3. Also called radical. Chemistry. two or more atoms specifically arranged, as the hydroxyl group, –OH. Compare […]