In mechanics, one of two or more forces (or other vector quantities) acting on a body whose combined effect is represented by a single resultant force. For purposes of calculation, a force may be resolved (see resolution of forces) into components acting at right angles to each other.
1. An abstract part of something:; SYN. constituent, element, factor, ingredient.
2. An artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system. + prikaži više

ETYM Abbrev. from unity.
(quantity) Standard quantity in relation to which other quantities are measured. There have been many systems of units. Some ancient units, such as the day, the foot, and the pound, are still in use. si units, the latest version of the metric system, are widely used in science.
1. A single undivided natural entity occurring in the composition of something else; SYN. building block.
2. A single undivided whole.
3. An individual or group or structure or other entity regarded as a structural or functional constituent of a whole.
4. An organization regarded as part of a larger social group; SYN. social unit. + prikaži više