vari-

In biology, the genetic phenomenon of mutation, implying a constant change in the genotypical structure of an organism.

1. To be deliberately ambiguous or unclear in order to mislead or to withhold information.
2. To avoid giving a direct and honest answer or opinion, or a clear and truthful account of a situation, especially by quibbling or being deliberately ambiguous or misleading.
3. To stray from or to evade the truth; to equivocate: "As a witness under oath, she didn't prevaricate but answered honestly."
4. To speak falsely or misleadingly.
5. To deliberately misstate or create an incorrect impression; to lie.

1. The deliberate act of deviating from the truth.
2. Intentionally vague or ambiguous; equivocation.
3. A statement which deviates from or perverts the truth.
4. The avoidance of telling the truth or of saying exactly what one really thinks.
5. The deliberate act of deviating from the truth; lying.
6. Etymology: from about 1382, "divergence from a right course, transgression", from Old French prevaricacion, from Latin prævaricationem, "a stepping out of line (of duty or behavior)"; from prævaricatus, a form of prævaricari, "to make a sham accusation, to deviate"; literally, "to walk crookedly", from prae, "before" + varicare, "to straddle", from varicus "straddling", from varus, "bowlegged, knock-kneed".

1. Someone who has lied or who lies repeatedly.
2. A person who speaks falsely; a liar.
3. Anyone who speaks so as to avoid the precise truth; a quibbler; an equivocator.

A description of a type of wind turbine for which for which the attack angle of the rotor blades can be adjusted, either automatically or manually, in order to respond efficiently to variations in wind speed and direction.