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stress

 
Sci-Tech Dictionary: stress
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(stres)

(biology) A stimulus or succession of stimuli of such magnitude as to tend to disrupt the homeostasis of the organism.
(mechanics) The force acting across a unit area in a solid material resisting the separation, compacting, or sliding that tends to be induced by external forces.

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Britannica Concise Encyclopedia: stress
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In the physical sciences and engineering, the force per unit area within materials that arises from externally applied forces, uneven heating, or permanent deformation. Normal stress refers to the stress caused by forces that are perpendicular to a cross-section area of the material. Shear stress arises from forces that are parallel to the plane of the cross section. Stress is expressed as the quotient of a force divided by an area.

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Science Dictionary: stress
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In physics, the internal resistance of an object to an external force that tends to deform it.

 
 

 

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Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.  Read more
Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
Science Dictionary. The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved.  Read more