erythromycin: an antibiotic (trade name Erythrocin or E-Mycin or Ethril or Ilosone or Pediamycin) obtained from the actinomycete Streptomyces erythreus; effective against many Gram-positive bacteria and some Gram-negative
asceticism: the doctrine that through renunciation of worldly pleasures it is possible to achieve a high spiritual or intellectual state