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delinquent neglectful of a duty or guilty of an offense or violation of the law. [4 definitions]
deliquesce to melt away; dissolve. [3 definitions]
delirious in, pertaining to, or displaying a temporary state of mental confusion and incoherence, as from a fever or intoxication. [2 definitions]
delirium a temporary state of mental disturbance sometimes caused by high fever, shock, or intoxication, and characterized by confusion, hallucinations, delusions, disturbed speech, and the like. [2 definitions]
delirium tremens a condition caused by chronic excessive drinking of alcohol and characterized by hallucinations, trembling, and anxiety.
deliver to send or bring (something) to an intended destination or recipient. [9 definitions]
deliverable combined form of deliver.
deliverance the act or process of delivering. [3 definitions]
delivery an act of conveying or transporting. [5 definitions]
dell a small, secluded vale or valley, usu. wooded.
Delmonico steak (sometimes l.c.) a beefsteak cut from the forward end of the short loin; club steak.
Delos a small island in the Aegean archipelago sacred as the birth place of the Greek gods Apollo and Artemis.
delouse to kill or remove lice on or from (a person, animal, or thing).
Delphi an ancient town in central Greece; site of the oracle of Apollo.
Delphic of or concerning the oracle of Apollo in ancient Greece.
delphinium a cultivated plant related to the buttercup that bears tall, showy spikes of flowers; larkspur.
Delphinus a summer constellation in the northern sky, located between Pegasus and Aquila; Dolphin.
delta the name of the fourth letter of the Greek alphabet. [2 definitions]
delta ray any particle emitted from matter following bombardment by ionizing radiation.
delta wave a low-frequency electric brain wave present during deep sleep in normal adults; delta rhythm.
delta wing the triangular wing of certain usu. supersonic aircraft, which provides not only lift but also horizontal stabilization.