quadrate (KWŎD-rāt): A square or rectangular shape.

quadriplegia (kwŏd-rĭ-PLĒ-jē-ă): Paralysis of four (limbs). Affects both arms, both legs and sometimes from the neck down.

quickening (KWĬK-ĕn-ĭng): First feeling of movement of the fetus in utero by the pregnant woman.