Zone

(redirected from lung zone)
Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.

Zone

1. See: Free trade zone.

2. In marketing, an area that a single sales representative or team of sales representatives are assigned to cover. A sales representative whose zone is, for example, Oklahoma, is not allowed to try to sell products in Texas and vice versa. This helps prevents sales reps from competing with each other for commissions.
References in periodicals archive ?
Typically, chest radiograph in early stage shows bilateral and symmetric micronodular or reticulonodular shadow predominantly in mid and upper lung zones with sparing of costophrenic angles.
The chest CT on lung window imaging showed centrilobular and paraseptal emphysematous changes in the upper lung zones and a large bulla with surrounding consolidation on the right lower lobe, which was considered as the cause of hemoptysis.
Her lung examination revealed crackles in mid lung zones bilaterally.
Numerous small pulmonary nodules in the peripheral lung zones of the lower lobes suggested pulmonary metastases.
in more than half of the cases the tumour had invaded two or more lung zones however, 1/4th of cases were confined to the middle zone.
No statistically significant relation was seen when different lung zones were analyzed.
He had few bilateral crackles with decreased aeration in the lower lung zones.
Emphysema caused by alpha 1 deficiency is worse in the lower lung zones and can be markedly accelerated by cigarette smoking.
After four weeks of fluctuating pyrexia, a repeat chest X-ray showed new nodular shadowing throughout the mid and lower lung zones bilaterally, consistent with a diagnosis of miliary tuberculosis.