| ANTIDEFAMATION | • antidefamation adj. Opposing the defamation of a particular group. Chiefly in direct or oblique reference to the Anti-Defamation League. • ANTIDEFAMATION adj. designed to counter defamation. | 
| ANTIFEDERALIST | • antifederalist n. Alternative spelling of anti-federalist. • anti-federalist n. One who opposes federalism. • anti-federalist adj. Opposing federalism. | 
| DENITRIFICATOR | • denitrificator n. Synonym of denitrator. • DENITRIFICATOR n. an agent that denitrifies. | 
| DETOXIFICATION | • detoxification n. The process of removing toxins. • DETOXIFICATION n. the act of detoxifying. | 
| DIFFERENTIATED | • differentiated v. Simple past tense and past participle of differentiate. • differentiated adj. (Biology, of a cell or tissue) That has taken on a specialized form and function. • DIFFERENTIATE v. to obtain the mathematical derivative of. | 
| DIFFERENTIATES | • differentiates v. Third-person singular simple present indicative form of differentiate. • DIFFERENTIATE v. to obtain the mathematical derivative of. | 
| DIFFERENTIATOR | • differentiator n. Anything that differentiates, or causes differentiation (in any sense); a distinguishing feature. • DIFFERENTIATOR n. someone who or that which differentiates. | 
| DISFORESTATION | • disforestation n. Archaic form of deforestation. • DISFORESTATION n. the act of disforesting. | 
| DISINFESTATION | • disinfestation n. The act or process of disinfesting. • DISINFESTATION n. the act of disinfesting. | 
| IDENTIFICATION | • identification n. (Strictly) The act of identifying (i.e., which one, which thing). • identification n. (Broadly, often) The combination of identifying (which one, which thing) and validating the identity… • identification n. The state of being identified. | 
| INDIFFERENTIST | • indifferentist n. An advocate of indifferentism. • INDIFFERENTIST n. an exponent of indifferentism. | 
| UNCERTIFICATED | • uncertificated adj. That has not been subject to certification. • UNCERTIFICATED adj. not certificated. | 
| UNTHRIFTIHEADS | • UNTHRIFTIHEAD n. (archaic) thriftlessness. |