Definify.com

Webster 1913 Edition

Noun.

(Chem.)

A pale buff or white crystalline alkaloid derived from quinoline, and used as an antipyretic in medicine.

kairine ‎(plural kairines)

(chemistry)A derivative of tetrahydro-quinoline (C10H13NO). It was used as an antipyretic.

Medical Record, by George Frederick Shrady, Thomas Lathrop Stedman, Joseph Meredith Toner Collection (Library of Congress), June 5 1886, page 647.