the difference in value over a period of time of a country's imports and exports of merchandise; "a nation's balance of trade is favorable when its exports exceed its imports"
commercial enterprises organized and financed on a scale large enough to influence social and political policies; "big business is growing so powerful it is difficult to regulate it effectively"
Siberian peasant monk who was religious advisor in the court of Nicholas II; was assassinated by Russian noblemen who feared that his debauchery would weaken the monarchy (1872-1916)
the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle; "nerve impulses cross a synapse through the action of neurotransmitters"
a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region