heterophil test
- noun
- /ˈhɛtərəˌfɪl tɛst/
- Specialized
- The doctor ordered a heterophil test to check for mononucleosis.
Examples
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A positive heterophil test is indicative of an Epstein-Barr virus infection.
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If the patient's heterophil test comes back negative, further testing may be needed.
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The doctor ordered a heterophil test to confirm the suspected case of mononucleosis.
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Have you ever had a heterophil test done?
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A positive heterophil test is indicative of an Epstein-Barr virus infection.
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If the patient's heterophil test comes back negative, further testing may be needed.
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The doctor ordered a heterophil test to confirm the suspected case of mononucleosis.
Synonyms
A lab test that uses an enzyme to find antibodies or germs in blood
A blood test that mixes blood with a known antibody to see clumping that shows blood type or infection
Surface Forms
Morphology
heterophil + test
The phrase follows the productive '[noun] test' pattern meaning 'a test for X', so if a learner knows the constituent 'heterophil' and 'test' the overall meaning is directly derivable. In practice 'heterophil' is a specialized biomedical term unlikely to be known by a B1 learner, but compositional structure makes the MWE transparent given knowledge of the parts.
Etymology
Heterophil test gets its name from antibodies called heterophils, where hetero means 'different' and phil means 'to like'. In the old lab test these antibodies made animal red blood cells clump, so a positive heterophil test showed the body was making those antibodies and helped doctors identify 'mono'.