alimentary tract smear

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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
• Hypernyms:
smear, cytologic smear, cytosmear
• Hyponyms:
esophageal smear, gastric smear, oral smear, paraduodenal smear, duodenal smear