Almost all of the asteroids in our solar system are orbiting in a broad band 19,400,000 miles wide between Jupiter and Mars.
Blockage, clogging, or impeded flow, for example, by occlusion or stenosis. obstruction. 1. the act of blocking or clogging. obstruction. 1 something that blocks or clogs. 2 the act of blocking or preventing passage. 3 the condition of being obstructed or clogged. obstruct, v., obstructive, adj.
Block trade. A block trade is a permissible, noncompetitive, privately negotiated transaction either at or exceeding an exchange determined minimum threshold quantity of shares, which is executed apart and away from the open outcry or electronic markets.