Definition of dislocations:
(n) :
The act of displacing, or the state of being displaced.
(n) :
The act of dislocating, or putting out of joint; also, the condition of being thus displaced.
(n) :
(geology) The displacement of parts of rocks or portions of strata from the situation which they originally occupied.
(n) :
(materials science) A linear defect in a crystal lattice. Because dislocations can shift within the crystal lattice, they tend to weaken the material, compared to a perfect crystal.
(n) :
(grammar) A sentence structure in which a constituent that could otherwise be either an argument or an adjunct of a clause occurs outside of and adjacent to the clause boundaries.
(n) :
(gymnastics, dance) In men's gymnastics, a rotating of the shoulders when performing a backwards turn on the still rings. Many skills in acrobatics appear to involve dislocating a joint, when they actually do not.