| NOUN | body | alimentary tract smear | any of several cytologic smears obtained from different parts of the alimentary tract |
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| Meaning | Any of several cytologic smears obtained from different parts of the alimentary tract; obtained by specialized lavage techniques and used mainly to diagnose cancer in those parts. | |
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| Narrower | esophageal smear | alimentary tract smear of material obtained from the esophagus |
| gastric smear | alimentary tract smear of material obtained from the stomach | |
| oral smear | alimentary tract smear of material obtained from the mouth | |
| paraduodenal smear, duodenal smear | alimentary tract smear of material obtained from the duodenum | |
| Broader | smear, cytologic smear, cytosmear | A thin tissue or blood sample spread on a glass slide and stained for cytologic examination and diagnosis under a microscope |
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