| ACCIDENTOLOGIES | • ACCIDENTOLOGY n. the study of accidents. |
| ACKNOWLEDGMENTS | • acknowledgments n. Plural of acknowledgment. • ACKNOWLEDGMENT n. the act of acknowledging, also ACKNOWLEDGEMENT. |
| DAGUERREOTYPERS | • daguerreotypers n. Plural of daguerreotyper. • DAGUERREOTYPER n. one who develops daguerreotypes, also DAGUERREOTYPIST. |
| DAGUERREOTYPIES | • DAGUERREOTYPY n. the art of daguerreotyping. |
| DAGUERREOTYPIST | • daguerreotypist n. A person who makes daguerreotypes. • DAGUERREOTYPIST n. one who practises daguerreotyping, also DAGUERREOTYPER. |
| DEGENERATIONIST | • degenerationist n. (Biology, historical) One who believes in the theory of degenerationism. • DEGENERATIONIST n. someone who believes that the tendency of man is not to improve, but to degenerate. |
| DELEGITIMATIONS | • delegitimations n. Plural of delegitimation. • DELEGITIMATION n. the act of delegitimizing. |
| DEMAGNETISATION | • demagnetisation n. (British spelling) Alternative form of demagnetization. • DEMAGNETISATION n. the act of demagnetising, also DEMAGNETIZATION. |
| DEPHLOGISTICATE | • dephlogisticate v. To take away the phlogiston, i.e. ability to burn, which is now understood to be chemically impossible. • DEPHLOGISTICATE v. to make something fireproof. |
| DEPIGMENTATIONS | • depigmentations n. Plural of depigmentation. • DEPIGMENTATION n. loss of normal pigmentation. |
| DEREGISTRATIONS | • deregistrations n. Plural of deregistration. • DEREGISTRATION n. the act of deregistering. |
| DERMATOGRAPHIES | • DERMATOGRAPHY n. anatomical description of the skin, also DERMOGRAPHY. |
| DINOFLAGELLATES | • dinoflagellates n. Plural of dinoflagellate. • DINOFLAGELLATE n. a kind of marine protozoan, one of the principal constituents of plankton. |
| DISCOURAGEMENTS | • discouragements n. Plural of discouragement. • DISCOURAGEMENT n. the act of discouraging. |
| DYSTELEOLOGICAL | • dysteleological adj. Of or pertaining to dysteleology. • DYSTELEOLOGICAL adj. related to dysteleology, the study of functionless rudimentary organs in animals and plants. |
| LARYNGECTOMISED | • LARYNGECTOMISED adj. having undergone a laryngectomy, also LARYNGECTOMIZED. |
| OVERADVERTISING | • overadvertising v. Present participle of overadvertise. • OVERADVERTISE v. to advertise to excess, also OVERADVERTIZE. |
| PREDESIGNATIONS | • predesignations n. Plural of predesignation. • PREDESIGNATION n. the act of predesignating. |
| RADIOTELEGRAPHS | • radiotelegraphs n. Plural of radiotelegraph. • RADIOTELEGRAPH n. wireless telegraphy. |
| REDINTEGRATIONS | • redintegrations n. Plural of redintegration. • REDINTEGRATION n. revival of the whole of a previous mental state when a phase of it recurs. |