Term: roentgen: a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
Broader: radioactivity unit: a measure of radioactivity | Unrelated: cell: (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals
Broader: radioactivity unit: a measure of radioactivity | Unrelated: stratification: the condition of being arranged in social strata or classes within a group
Broader: radioactivity unit: a measure of radioactivity | Unrelated: topiary: making decorative shapes by trimming shrubs or trees
Broader: radioactivity unit: a measure of radioactivity | Unrelated: whydah: mostly black African weaverbird
Broader: radioactivity unit: a measure of radioactivity | Unrelated: surgeon general: the head of the United States Public Health Service
Broader: radioactivity unit: a measure of radioactivity | Unrelated: ophioglossum: the type genus of the fern family Ophioglossaceae
Broader: radioactivity unit: a measure of radioactivity | Unrelated: writing: the work of a writer; anything expressed in letters of the alphabet (especially when considered from the point of view of style and effect)
Broader: radioactivity unit: a measure of radioactivity | Unrelated: tenderfoot: an inexperienced person (especially someone inexperienced in outdoor living)
Broader: radioactivity unit: a measure of radioactivity | Unrelated: christian science: religious system based on teachings of Mary Baker Eddy emphasizing spiritual healing
Broader: radioactivity unit: a measure of radioactivity | Unrelated: varmint: any usually predatory wild animal considered undesirable; e.g., coyote