|klōr, -ȯr+ noun
( -s )
Etymology: chlor- + tetracycline
: a yellow crystalline antibiotic C 22 H 23 ClN 2 O 8 produced by one strain of a soil actinomycete ( Streptomyces aureofaciens ), administered usually in the form of its hydrochloride in the treatment of certain bacterial, rickettsial, and viral diseases and added in crude form to animal feeds for stimulating growth