A cramp is a painful, unpleasant sensation that is caused due to the contraction of muscles. They can be caused due to cold, overexertion, and illness or poisoning. There are two main causes of cramp â inadequate oygenation of the muscles and the lack of water or salt. Neck Cramps.
syn: deviate, digress, diverge imply turning or going aside from a path. To deviate is to stray from a usual or established standard, course of action, or route: Fear made him deviate from the truth. To digress is to wander from the main theme in speaking or writing: The speaker digressed to relate an amusing anecdote.
Definition of invalidate for English Language Learners. : 1  to weaken or destroy the effect of (something) : 2  to show or prove (something) to be false or incorrect.