13-Letter Words Containing: A,I,N,T,I,F,F

• any evidence that helps to establish the falsity of something

• a willful perversion of facts

• the act of rendering something false as by fraudulent changes (of documents or measures etc.) or counterfeiting

• the act of determining that something is false

• defensive structure consisting of walls or mounds built around a stronghold to strengthen it

• the art or science of strengthening defenses

• the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food)

• renewed affirmation

• persistent petty and unjustified criticism

• tending to make moral judgments or judgments based on personal opinions

• tending to find and call attention to faults

• mark as different

• be a distinctive feature, attribute, or trait; sometimes in a very positive sense

• calculate a derivative; take the derivative

• become different during development

• evolve so as to lead to a new species or develop in a way most suited to the environment

• become distinct and acquire a different character

• relating to or showing a difference

• involving or containing one or more derivatives

• the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx

• a quality that differentiates between similar things

• a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves

• (medicine) blowing air or medicated powder into the lungs (or into some other body cavity)

• an act of blowing or breathing on or into something