oral smear
- noun
- /ˈɔrəl smɪr/
- Specialized
- The doctor ordered an oral smear to check for signs of infection.
Examples
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Laboratory technicians prepared the oral smear for microscopic analysis.
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The doctor took an oral smear for testing.
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An oral smear can help diagnose certain fungal or bacterial diseases of the mouth.
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Have you ever had an oral smear done?
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An oral smear can help diagnose certain fungal or bacterial diseases of the mouth.
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The doctor ordered an oral smear to check for signs of infection.
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Laboratory technicians prepared the oral smear for microscopic analysis.
Synonyms
A thin sample of cells or fluid placed on a glass slide
A small sample of cells spread thin on a glass slide to look at under a microscope
Surface Forms
Morphology
The meaning is directly and transparently derived from combining 'oral' (pertaining to the mouth) with 'smear' (a specimen spread on a slide); a B1 learner who knows both words can infer it refers to a mouth-derived specimen prepared for microscopic examination. This follows a regular adjective + noun composition pattern common across languages and in medical register, so the sense is predictable from its parts.
Etymology
The noun oral smear comes from the simple action of taking a small oral smear, a tiny 'sample' from the mouth that is spread across a glass slide to look under a microscope. So, the name means 'a lab test from the mouth' used to check for infection.