The state's right to resist federal laws that the state considers unconstitutional.

the action of interjecting or interposing an action or remark that interrupts

The idea that a state, having retained its sovereignty in a federal system, can interpose its authority between the central government and an individual, to protect its citizens from illegal or unconstitutional action. (See the discussion of nullification in the text and states' rights below.)

A monocular depth cue in which objects that are farther away are blocked from view by any other opaque object obstructing their optical path to the eye.

Visual cue which enables comparative distance judgment (i.e., closer vs. farther away). When one object is in front of and partially blocks another, the object being blocked is further away. The object fully seen is closer to the observer.

The act of interposing, or the state of being interposed; a being, placing, or coming between; mediation.

The thing interposed.

the act of interposing one thing between or among others

The movement of a piece in between a piece which is attacked and its attacker.