a mechanical system of rods or springs or pivots that transmits power or motion
(genetics) traits that tend to be inherited together as a consequence of an association between their genes; all of the genes of a given chromosome are linked (where one goes they all go)
prevent the progress or free movement of; "He was hampered in his efforts by the bad weather"; "the imperialist nation wanted to strangle the free trade between the two small countries"
a Gestalt principle of organization holding that (other things being equal) objects or events that are near to one another (in space or time) are perceived as belonging together as a unit