the act of obstructing or deflecting someone's movements | any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks |
a solid piece of something (usually having flat rectangular sides) | a motor vehicle with four wheels; usually propelled by an internal combustion engine |
an obstruction in a pipe or tube | a device for overcoming resistance at one point by applying force at some other point |
a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope | a group that controls the activities of a political party |
a metal casting containing the cylinders and cooling ducts of an engine | an intricate organization that accomplishes its goals efficiently |
a platform from which an auctioneer sells | an efficient person |
housing in a large building that is divided into separate units | |
an inability to remember or think of something you normally can do; often caused by emotional tension | |
a number or quantity of related things dealt with as a unit | |
a rectangular area in a city surrounded by streets and usually containing several buildings | |
(computer science) a sector or group of sectors that function as the smallest data unit permitted | |
a three-dimensional shape with six square or rectangular sides | |