Medical Dictionary - Letter: q

Term	Definition	Pronunciation
qrs complex	A segment of an EKG tracing representing ventricular depolarization.
qt	quart
quackery	The fraudulent misrepresentation of the diagnosis and treatment of disease.
quadr-	four
quadri-	four
quadriceps muscle	The quadriceps femoris. A collective name of the four-headed skeletal muscle of the thigh.
quadriplegia	Paralysis that results in the partial or total loss of use of all four limbs and torso.	kwod″rĭ-ple´jah
quantum theory	The theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level.
quarantine	The isolation of individuals who have been exposed to an infectious disease in order to prevent its spread.
quasi	virtual, resembling
quickening	Movements of the fetus felt by the mother, usually after the first 16 weeks of pregnancy.
quinine	An drug derived from the bark of the cinchona tree, used as an antimalarial drug.
quint/i	fifth