allies: in World War I the alliance of Great Britain and France and Russia and all the other nations that became allied with them in opposing the Central Powers
abstraction: a general concept formed by extracting common features from specific examples
plantar reflex: flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)