n.
Pronunciation: ' se-f ə -l ə -th ə n, - ˌ thin
Function: noun
Etymology: cephalo sporin + thi- + 1 -in
Date: 1962
: a semisynthetic broad-spectrum antibiotic derived from cephalosporin and used in the form of its sodium salt C 16 H 15 N 2 NaO 6 S 2