Thesaurus: 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
Related headwords
particlesdefinitionalphadefinitionatmosphericdefinitionchieflydefinitioncollisiondefinitionconsistingdefinitionextraterrestrialdefinitionhighlydefinitionionizingdefinitionkindsdefinitionorigindefinitionprotonsdefinitionradiationdefinitionraysdefinitionresultsdefinitioncosmicfamilycosmic dustfamilycosmic radiationfamilycosmic stringfamilycosmic timefamilycosmic-raysfamilycosmicalfamilycosmicallyfamilycosmicsfamilycosmidfamilycosmidsfamily