| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| dualistic | adjective | Consisting of two; pertaining to dualism or duality. |
| dubieties | plural | of Dubiety |
| dubiosity | noun | The state of being doubtful; a doubtful statement or thing. |
| dubiously | adverb | In a dubious manner. |
| dubitable | adjective | Liable to be doubted; uncertain. |
| dubitancy | noun | Doubt; uncertainty. |
| duboisine | noun | An alkaloid obtained from the leaves of an Australian tree (Duboisia myoporoides), and regarded as identical with hyoscyamine. It produces dilation of the pupil of the eye. |
| ductility | noun | The property of a metal which allows it to be drawn into wires or filaments., Tractableness; pliableness. |
| dufrenite | noun | A mineral of a blackish green color, commonly massive or in nodules. It is a hydrous phosphate of iron. |
| dulcamara | noun | A plant (Solanum Dulcamara). See Bittersweet, n., 3 (a). |
| dulceness | noun | Sweetness. |
| dulcified | adjective | Sweetened; mollified., of Dulcify |
| dulciness | noun | See Dulceness. |
| dulcitude | noun | Sweetness. |
| dulcorate | verb t. | To sweeten; to make less acrimonious. |
| dull-eyed | adjective | Having eyes wanting brightness, liveliness, or vivacity. |
| dulocracy | noun | See Doulocracy. |
| dumb-bell | noun | A weight, consisting of two spheres or spheroids, connected by a short bar for a handle; used (often in pairs) for gymnastic exercise. |
| dumbledor | noun | A bumblebee; also, a cockchafer. |
| dumpiness | noun | The state of being dumpy. |
| duodecimo | adjective | Having twelve leaves to a sheet; as, a duodecimo from, book, leaf, size, etc., A book consisting of sheets each of which is folded into twelve leaves; hence, indicating, more or less definitely, a size of a book; — usually written 12mo or 12ยก. |
| duodenary | adjective | Containing twelve; twelvefold; increasing by twelves; duodecimal. |
| duplicate | adjective | Double; twofold., That which exactly resembles or corresponds to something else; another, correspondent to the first; hence, a copy; a transcript; a counterpart., An original instrument repeated; a document which is the same as another in all essential particulars, and differing from a mere copy in having all the validity of an original., To double; to fold; to render double., To make a duplicate of (something); to make a copy or transcript of., To divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves. |
| duplicity | noun | Doubleness; a twofold state., Doubleness of heart or speech; insincerity; a sustained form of deception which consists in entertaining or pretending to entertain one of feelings, and acting as if influenced by another; bad faith., The use of two or more distinct allegations or answers, where one is sufficient., In indictments, the union of two incompatible offenses. |
| durometer | noun | An instrument for measuring the degree of hardness; especially, an instrument for testing the relative hardness of steel rails and the like. |
| duskiness | noun | The state of being dusky. |
| dustbrush | noun | A brush of feathers, bristles, or hair, for removing dust from furniture. |
| dustiness | noun | The state of being dusty. |
| duumviral | adjective | Of or belonging to the duumviri or the duumvirate. |
| duykerbok | noun | A small South African antelope (Cephalous mergens); — called also impoon, and deloo. |