dead space


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dead space

[′ded ‚spās]
(anatomy)
The space in the trachea, bronchi, and other air passages which contains air that does not reach the alveoli during respiration, the amount of air being about 140 milliliters. Also known as anatomical dead space.
(medicine)
A cavity left after closure of a wound.
(physiology)
A calculated expression of the anatomical dead space plus whatever degree of overventilation or underperfusion is present; it is alleged to reflect the relationship of ventilation to pulmonary capillary perfusion. Also known as physiological dead space.
(thermodynamics)
A space filled with gas whose temperature differs from that of the main body of gas, such as the gas in the capillary tube of a constant-volume gas thermometer.

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i. An area within the maximum range of a weapon, radar, or observer that cannot be covered by fire or observation from a particular position because of intervening obstacles, the nature of the ground, the characteristics of the trajectory, or the limitations of the pointing capabilities of the weapons.
ii. An area or zone that is within range of a radio transmitter but in which a signal is not received.
iii. The volume of space above and around a gun or guided missile system into which it cannot fire because of mechanical or electronic limitations.
iv. Dead spots in radio-range reception areas over transmitting stations similar to the cone of silence but lacking normal characteristics like buildup, dead spots, surges, and fades. This phenomenon is likely to be caused by flights over mountains, areas of ore deposits, and other factors. See also cone of silence.
v. The area located between the limit of the surface wave and the point of reception of the first sky wave. It is most common in the HF (high frequency) frequency range. Also called the skip zone.
References in periodicals archive ?
Effect of closing dead space on seroma formation after mastectomy--a prospective randomized clinical trial.
This study examined the longitudinal effect of implementing additional dead space on RER and VC[O.
For those of you that are new to the franchise can take a look at the Dead Space 3 story so far below:
According to Mary Ann Rothman, the executive director of the Council of New York Cooperatives & Condominiums, there is no official registrar of how many co-ops and condominiums are in the process of monetizing their dead space or how much additional revenue the process brings in.
Dead Space was released in 2008 and it was one of the scariest and most gruesome titles in recent history.
We covered the dead space and the exposed facial nerve with an inferior pedicled musculoperiosteal flap, cartilage, and a full-thickness skin graft (figure 2, B).
In downstream processes in particular, the pneumatically or manually controlled valves excel thanks to their low volumes and dead space reduction.
Electronic Arts Inc (EA)(Nasdaq:ERTS), an interactive, entertainment, software company, on Wednesday (18 February) announced a new video game, Dead Space Extraction, an all-new chapter from the action-horror Dead Space game.
today revealed Dead SpaceTM Extraction, an all-new chapter from the studio that delivered the award-winning action-horror Dead Space game.
Various methods have been employed in the management of post-sequestrectomy dead space.
A nurse injects the medication into a soluset, runs it through the tubing in a timed way until the soluset is empty, and then adds a flush solution to the soluset to accommodate for the dead space of the IV tubing and complete the delivery of the medication to the patient.