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- DICTYOSOMEA plant organelle that is functionally equivalent to the Golgi apparatus in animal cells.
- DICYNODONTA member of the infraorder Dicynodontia of dominant herbivores of the Late Permian, the most successful group of non-mammalian synapsids.
- DIDACTA didactic person.
- DIDACTICInstructive or intended to teach or demonstrate, especially with regard to morality.
- DIDELPHOUSSynonym of didelphic.
- DIDYMIUMA mixture of praseodymium and neodymium once thought to be an element (symbol Di).
- DIDYMIUMSA mixture of praseodymium and neodymium once thought to be an element (symbol Di).
- DIEGESISA narration or recitation.
- DIEGETICOf or relating to diegesis; existing within a fictional universe (rather than as background), and able to be perceived by the characters.
- DIELHaving a 24-hour period regardless of day or night.
- DIENEAn organic compound, especially a hydrocarbon, containing two double bonds.
- DIEOFFAlternative form of die-off.
- DIESELA fuel derived from petroleum (or other oils) but heavier than gasoline/petrol. Used to power diesel engines which burn this fuel using the heat produced when air is compressed.
- DIESINKERAn engraver (person) of dies for stamping coins, medals, etc.
- DIESTERany organic compound containing two ester functional groups
- DIESTOCKA component that holds a die that cuts screw threads.
- DIETThe food and beverage a person or animal consumes.
- DIETARILYIn relation to the diet.
- DIETARYA regulated diet that excludes or constrains certain types of food, especially for health reasons; also, a book or similar setting out such regulations.
- DIETERA person who diets, usually in an effort to lose weight.
- DIETETICRelating to diet.
- DIETETICALLYIn a dietetic manner, using a diet or in the form of a diet.
- DIETETICSThe study of diet and nutrition in relation to health and disease.
- DIETHERAny organic compound having two ether functional groups.
- DIETHYLTwo ethyl groups attached to the same molecule.
- DIFFERENTNot the same; exhibiting a difference.
- DIFFERENTIALOf or pertaining to a difference.
- DIFFERENTIALLYIn a differential manner
- DIFFERENTLYIn a different way.
- DIFFICULTYThe state of being difficult, or hard to do.
- DIFFRACTTo cause diffraction
- DIFFUSETo spread (something) over or through as in air, water, or other matter, especially by fluid motion or passive means.
- DIFFUSELYIn a diffuse manner.
- DIGAMISTOne who marries a second time; a deuterogamist.
- DIGAMYA second marriage (as after the death or divorce of a spouse)
- DIGASTRICHaving two bellies.
- DIGENETICOf or relating to a subclass (Digenea) of trematode worms in which sexual reproduction as an internal parasite of a vertebrate alternates with asexual reproduction in a mollusk.
- DIGERATIPeople who are considered the elite in using computers and the Internet.
- DIGESTTo distribute or arrange methodically; to work over and classify; to reduce to portions for ready use or application.
- DIGESTEROne who, or that which, digests.
- DIGESTIBLECapable of being digested.
- DIGESTIBLYIn a digestible manner; so as to be digested easily.
- DIGESTIFAn alcoholic beverage consumed after eating, so called because it is presumed to aid digestion.
- DIGESTIONThe process, in the gastrointestinal tract, by which food is converted into substances that can be used by the body.
- DIGESTIONALSynonym of digestive.
- DIGESTIVEOf, relating to, or functioning in digestion.
- DIGESTIVELYIn a digestive manner; by means of digestion
- DIGESTORDated spelling of digester.
- DIGHTAdorned, decorated, or furnished (with); dressed, arrayed, or decked out.
- DIGICAMA digital camera.
- DIGITA position in a sequence of numerals representing a place value in a positional number system.
- DIGITALHaving to do with digits (fingers or toes); especially, performed with a finger.
- DIGITALINAny of a mixture of glycosides, extracted from the foxglove plant, that are used as cardiotonics.
- DIGITALISAny plant of the genus Digitalis (herbaceous plants of the Plantaginaceae family, including the foxglove, Digitalis purpurea).
- DIGITALISMA medical condition caused by digitalis poisoning.
- DIGITALLYIn a digital manner.
- DIGITATEHaving digits, fingers or things shaped like fingers; fingerlike
- DIGITRONSynonym of Nixie tube.
- DIGLOSSIAThe coexistence in a given population of two closely related native languages or dialects, one of which is regarded as more prestigious than the other; the similar coexistence of t
- DIGLOTA bilingual inscription, book, or person.
- DIGLYPHA member with two vertical channels or grooves, without the two lateral half grooves which characterize the triglyph.
- DIGNIFYTo invest with dignity or honour.
- DIGNITARYAn important or influential person, or one of high rank or position.
- DIGNITYThe state of being dignified or worthy of esteem: elevation of mind or character.
- DIGONEUTICHaving two broods per season.
- DIGOXINA poisonous compound present in the foxglove (Digitalis lanata) and other plants. It is a steroid glycoside and is used in small doses as a cardiac stimulant.
- DIGRAPHA directed graph.
- DIGRAPHICOf or pertaining to a digraph.
- DIGRESSIONAn aside, an act of straying from the main subject in speech or writing.
- DIGRESSIONALPertaining to, or having the character of, a digression; departing from the main purpose or subject.
- DIGRESSIONARYServing as a digression.
- DIGYNOUSHaving two styles or pistils.
- DIKASynonym of African mango (Irvingia gabonensis)
- DIKEUS standard spelling of dyke.
- DIKEROne who digs or works on dykes; a ditcher.
- DIKESplural of dike
- DIKETONEany compound having two neighbouring ketonic carbonyl groups
- DIKINGThe process of building a dike.
- DIKTATA dogmatic decree or command, especially issued by one who rules without popular consent.
- DILATANCYThe property of dilating or expanding, especially by means of an increase in space between the component parts.
- DILATETo enlarge; to make bigger.
- DILATEROne who, or that which, dilates, expands, or enlarges.
- DILATIONThe act of dilating.
- DILATIVEThat dilates, or causes dilation
- DILATOMETRICOf or pertaining to dilatometry
- DILATOMETRYThe measurement of changes in volume that accompany some other physical phenomenon
- DILATORAny nerve or muscle that causes part of the body to dilate.
- DILATORILYIn a dilatory manner.
- DILATORYIntentionally delaying (someone or something), intended to cause delay, gain time, or adjourn decision.
- DILETTANTEAn amateur, someone who dabbles in a field out of casual interest rather than as a profession or serious interest.
- DILETTANTISHamateurish
- DILETTANTISMThe act of behaving like a dilettante, of being an amateur or dabbler, sometimes in the arts.
- DILIGENCESteady application; industry; careful work involving long-term effort.
- DILIGENTPerforming with industrious concentration; hard-working and focused.
- DILIGENTLYIn a diligent manner, with appropriate effort, carefully.
- DILLYRedolent of dill (the herb).
- DILTIAZEMA benzothiazepine drug, a potent vasodilator used to treat hypertension, migraine, angina pectoris, and some types of arrhythmia.
- DILUENTThat which dilutes.
- DILUTETo make thinner by adding solvent to a solution, especially by adding water.
- DILUTERA substance used for diluting.