Expiratory reserve volume


expiratory reserve volume n.
Abbr. ERV
The maximal volume of air, usually about 1000 milliliters, that can be expelled from the lungs after normal expiration. Also called reserve air, supplemental air.

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  • Expire

    [ik-spahyuh r] /ɪkˈspaɪər/ verb (used without object), expired, expiring. 1. to come to an end; terminate, as a contract, guarantee, or offer. 2. to emit the last breath; die. 3. to breathe out. 4. to die out, as a fire. verb (used with object), expired, expiring. 5. to breathe out; emit (air) from the lungs. […]

  • Expired

    [ik-spahyuh r] /ɪkˈspaɪər/ verb (used without object), expired, expiring. 1. to come to an end; terminate, as a contract, guarantee, or offer. 2. to emit the last breath; die. 3. to breathe out. 4. to die out, as a fire. verb (used with object), expired, expiring. 5. to breathe out; emit (air) from the lungs. […]

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    expired gas n.

  • Expiring

    [ik-spahyuh r] /ɪkˈspaɪər/ verb (used without object), expired, expiring. 1. to come to an end; terminate, as a contract, guarantee, or offer. 2. to emit the last breath; die. 3. to breathe out. 4. to die out, as a fire. verb (used with object), expired, expiring. 5. to breathe out; emit (air) from the lungs. […]


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