a painful burning sensation in the chest caused by gastroesophageal reflux (backflow from the stomach irritating the esophagus); symptomatic of an ulcer or a diaphragmatic hernia or other disorder
(mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry
an oblique line of squares of the same color on a checkerboard; "the bishop moves on the diagonals"
a line or cut across a fabric that is not at right angles to a side of the fabric
(geometry) a straight line connecting any two vertices of a polygon that are not adjacent
at an angle; especially connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face; "a diagonal line across the page"
protection from harm; "sanitation is the best defense against disease"
military action or resources protecting a country against potential enemies; "they died in the defense of Stalingrad"; "they were developed for the defense program"
a defendant's answer or plea denying the truth of the charges against him; "he gave evidence for the defense"
the justification for some act or belief; "he offered a persuasive defense of the theory"
an organization of defenders that provides resistance against attack; "he joined the defense against invasion"
the defendant and his legal advisors collectively; "the defense called for a mistrial"
(sports) the team that is trying to prevent the other team from scoring; "his teams are always good on defense"
put on special clothes to appear particularly appealing and attractive; "She never dresses up, even when she goes to the opera"; "The young girls were all fancied up for the party"
make something appear superficially attractive; "The researcher tried to dress up the uninteresting data"; "Don't try to dress up the unpleasant truth"
instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer"
the living body considered as made up of interdependent components forming a unified whole; "exercise helped him get the alcohol out of his system"
a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion"
a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender"
a procedure or process for obtaining an objective; "they had to devise a system that did not depend on cooperation"
a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going"
(physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide"
some situation or event that is thought about; "he kept drifting off the topic"; "he had been thinking about the subject for several years"; "it is a matter for the police"
a line spoken by an actor to the audience but not intended for others on the stage
in reserve; not for immediate use; "started setting aside money to buy a car"; "put something by for her old age"; "has a nest egg tucked away for a rainy day"
on or to one side; "step aside"; "stood aside to let him pass"; "threw the book aside"; "put her sewing aside when he entered"
out of the way (especially away from one's thoughts); "brush the objections aside"; "pushed all doubts away"
placed or kept separate and distinct as for a purpose; "had a feeling of being set apart"; "quality sets it apart"; "a day set aside for relaxing"