Void - in Science and Engineering

In Science and Engineering

• Void (astronomy), the empty spaces between galaxy filaments
• Lack of matter, or vacuum
• Void, in boiling heat transfer, formed where there is a departure from nucleate boiling, causing a critical heat flux
• Void, in mechanical engineering, is a bubble or pocket of vapor which forms near a propeller or pump, causing cavitation
• Void, in casting or injection molding, describes a defect where there are empty spaces (air pockets) in a completed part
• Void coefficient, in nuclear engineering, is a measure of how spaces devoid of either moderator or coolant affect the reactivity of a nuclear reactor
• Void ratio, of voids to solids in a mixture, in material sciences
• Void safety, an issue raised in programming by a reference that is not attached to an object, also known as null reference
• Void type, keyword indicating the absence of type information in many programming languages
• VoiD (Vocabulary of Interlinked Dataset), the vocabulary to describe linked open datasets in order for users to discover, interlink and evaluate the quality of these datasets on the Web