methane: a colorless odorless gas used as a fuel
methane series: a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2)
pulmonary anthrax: a form of anthrax infection acquired by inhalation of dust containing Bacillus anthracis; initial symptoms (chill and cough and dyspnea and rapid pulse) are followed by extreme cardiovascular collapse