Quinine

Quinine, an alkaloid obtained from the bark of several species of the cinchona tree and others, and which is employed in medicine specially as a ferbrifuge and a tonic.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Quinet, Edgar * Quinisext
Quietism
Quilimane
Quilon
Quimper
Quin, James
Quinault
Quincey, De
Quincy
Quincy, Josiah
Quinet, Edgar
Quinine
Quinisext
Quinquagesima Sunday
Quinsy
Quintana, Manuel José
Quintette
Quintilian, Marcus Fabius
Quipo
Quirinal
Quirites
Quito