capacity /ca·pac·i·ty/ (kah-pas´ĭ-te) the power to hold, retain, or contain, or the ability to absorb; usually expressed numerically as the measure of such ability.
forced vital capacity.
forced vital capacity,
forced vital capacity
forced vital capacity (FVC) vital capacity measured when the patient is exhaling with maximal speed and effort.
functional residual capacity the amount of air remaining at the end of normal quiet respiration.
heat capacity the amount of heat required to raise the temperature of a specific quantity of a substance by one degree Celsius. Symbol C.
inspiratory capacity the volume of gas that can be taken into the lungs in a full inhalation, starting from the resting inspiratory position; equal to the tidal volume plus the inspiratory reserve volume.
maximal breathing capacity maximum voluntary ventilation.
thermal capacity heat c.
total lung capacity the amount of gas contained in the lung at the end of a maximal inhalation. 
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Subdivisions of total lung capacity: TLC, total lung capacity; VT, tidal volume; IC, inspiratory capacity; FRC, functional residual capacity; ERV, expiratory reserve volume; VC, vital capacity; RV, residual volume.
virus neutralizing capacity the ability of a serum to inhibit the infectivity of a virus.
vital capacity VC; the volume of gas that can be expelled from the lungs from a position of full inspiration, with no limit to duration of inspiration; equal to inspiratory capacity plus expiratory reserve volume.
| forced vital capacity n. Abbr. FVC Vital capacity measured with subject exhaling as rapidly as possible. |
forced vital capacity.
forced vital capacity,
n a measure of the maximum rate of exhalation. Deviance from normative patterns based on age, size, and gender may indicate possible dysfunction.
capacity
the power to hold, retain, or contain, or the ability to absorb; usually expressed numerically as the measure of such ability.
carrying capacity
see carrying capacity.
closing capacity (CC)
the volume of gas in the lungs at the time of airway closure. See also closing volume.
forced vital capacity
the maximal volume of gas that can be exhaled from full inspiration exhaling as forcefully and rapidly as possible. See also pulmonary function tests.
functional residual capacity
the amount of gas remaining at the end of normal quiet respiration.
heat capacity
thermal capacity.
inspiratory capacity
the volume of gas that can be taken into the lungs in a full inspiration, starting from the resting inspiratory position; equal to the tidal volume plus the inspiratory reserve volume.
maximal breathing capacity
maximal voluntary ventilation.
thermal capacity
the amount of heat absorbed by a body in being raised 1°C.
total lung capacity
the amount of gas contained in the lung at the end of a maximal inspiration.
virus neutralizing capacity
the ability of a serum to inhibit the infectivity of a virus.
vital capacity
the volume of gas that can be expelled from the lungs from a position of full inspiration, with no limit to duration of expiration; equal to inspiratory capacity plus expiratory reserve volume.
forced vital capacity
FVC Pulmonary medicine The volume of air exhaled with maximum effort and speed after a full inspiration; FVC is usually ↓ and thus is a major parameter measured in obstructive airways disease, a term that
encompasses both asthma and COPD
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