ceftriaxone: a parenteral cephalosporin (trade name Rocephin) used for severe infection of the lungs or throat or ears or urinary tract
cephalosporin: one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity
methodology: the branch of philosophy that analyzes the principles and procedures of inquiry in a particular discipline