Collapse

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collapse

[kə′laps]
(engineering)
Contraction of plastic container walls during cooling; produces permanent indentation.
(materials)
The flattening of cells in heartwood during drying or pressure treatment; often characterized by a caved-in or corrugated surface appearance.

Collapse

 

acute vascular insufficiency accompanied by a fall in arterial and venous blood pressure.

Collapse is a result of a disturbance of the regulation of vascular tonus and injury to the vascular walls through infection, intoxication, massive blood loss, severe dehydration, myocardial affection (acute myocardial infarction), and other pathological conditions. Collapse is characterized by a decrease of blood flow to the heart, a deterioration of the blood supply to the vital organs, and the development of hypoxia. The patient’s facial features become pinched and the eyes roll back. He becomes pallid, with sticky perspiration and cold extremities. If the patient is conscious, he lies immobile and indifferent to his surroundings. Breathing is superficial and accelerated. The pulse is rapid. The most accurate index of the gravity of the patient’s condition is the degree to which arterial pressure is lowered. Severe collapse may be a direct cause of death. Collapse is treated with the immediate use of agents that stimulate the vascular and respiratory centers and with vasoconstrictors, blood transfusions, and blood substitutes. Measures should also be directed toward the elimination of the primary causes of the collapse.

collapse

Mechanical failure of cells in wood, usually caused by abnormal or forced drying.
References in periodicals archive ?
3] According to which theoretical scheme, justified by physical reality alone, can a Wave Function Collapse be described properly?
There were no injuries from the collapse and the garage workers safely evacuated the area immediately after the incident.
about a garage collapse with an odor of gas at 315 South Main St.
Naseem is facing two charges in a Health and Safety Executive prosecution relating to the collapse of Sunset Amusements at Southgate in Elland.
the camel may wobble or groan as the loading threshold approaches; however, when a single straw precipitates a spectacular collapse, everybody stands around with palms upward in stunned surprise
In Collapse, Diamond proves himself an enthusiastic apostle of Malthusianism.
And it only stands to reason that radio communication in a matrix of rubble would become even tougher: A collapse compacts radio-stopping materials into a thicker, more radiopaque barrier.
Suction hoses usually collapse either from the heat or from being stuffed in the storage box.
You know how to set a timer, but newer ultrasonic welders also offer control by energy collapse distance, and absolute distance.
As painful as market collapses are on investors and the economy, they serve a useful purpose, not unlike a forest fire that clears out the underbrush and weak trees so the forest prospers, Seizer and Torres feel.
What's more, the collapse of the party need not entail the disappearance of China.