Term: cosmic ray: highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: archine: a Russian unit of length (71 cm)
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: fiber: any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber)
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: oilman: a person who owns or operates oil wells
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: telescopy: the art of making and using telescopes
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: prompter: someone who assists a performer by providing the next words of a forgotten speech
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: native hawaiian: a member or descendant of the indigenous Polynesian people who lived in the Hawaiian Islands
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: ozone layer: a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: fire hose: a large hose that carries water from a fire hydrant to the site of the fire
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: basket fern: giant epiphytic or lithophytic fern; Asia to Polynesia and Australia
Broader: ionizing radiation: high-energy radiation capable of producing ionization in substances through which it passes | Unrelated: genus nostoc: type genus of the family Nostocaceae: freshwater blue-green algae